Data Formats and Their File Extensions

.#24 Printer data file for 24 pin matrix printer (LocoScript)

.#ib Printer data file (LocoScript)

.#sc Printer data file (LocoScript)

.#st Standard mode printer definitions (LocoScript)

.$#! Cryptext

.$$$ Temporary file

.$00 Pipe file (DOS)

.$db Temporary file (dBASE IV)

.$ed Editor temporary file (MS C)

.$o1 Pipe file (DOS)

.$vm Virtual manager temporary file (Windows 3.x)

._dd Norton Disk Doctor Recovered file

.~$~ Temporary file (1st Reader)

.~ap Old AppExpert project database (Borland C++ 4.5)

.~de Project backup (Borland C++ 4.5)

.~mn Menu backup (Norton Commander)

.\201$\201 Temporary file (1st Reader)

.000 Compressed harddisk data (DoubleSpace)

.001 Fax (many)

.075 75x75 dpi display font (Ventura Publisher)

.085 85x85 dpi display font (Ventura Publisher)

.091 91x91 dpi display font (Ventura Publisher)

.096 96x96 dpi display font (Ventura Publisher)

.0b Printer font with lineDraw extended character set (PageMaker)

.1 Roff/nroff/troff/groff source for manual page (

.113 Iomega Backup file

.123 Lotus file

.15u Printer font with PI font set (PageMaker)

.1st Usually README.1ST text

.2d 2d Drawings (VersaCad)

.2dl 2d Libraries (VersaCad)

.3d 3d Drawings (VersaCad)

.3dl 3d Libraries (VersaCad)

.301 Fax (Super FAX 2000 - Fax-Mail 96))

.386 Intel 80386 processor driver (Windows 3.x)

.3ds Graphics (3D Studio)

.3fx Effect (CorelChart)

.3gr Data file (Windows Video Grabber)

.3t4 Binary file converter to ASCII (Util3)

.411 Sony Mavica Data file

.4c$ Datafile (4Cast/2)

.4sw 4dos Swap File

.4th Forth source code file (ForthCMP - LMI Forth)

.669 Music (8 channels) (The 669 Composer)

.6cm Music (6 Channel Module) (Triton FastTracker)

.8 A86 assembler source code file

.8cm Music (8 Channel Module) (Triton FastTracker)

.8m Printer font with Math 8 extended character set (PageMaker)

.8u Printer font with Roman 8 extended character set (PageMaker)

.a Ada source code file

Library (unix)

.a11 Graphics AIIM image file

.a3d Amapi 3D Modeling file

.a3m Unpackaged Authorware MacIntosh file

.a3w Unpackaged Authorware Windows file

.a4m Unpackaged Authorware MacIntosh file

.a4p Authorware file packaged without runtime

.a4w Unpackaged Authorware Windows file

.a5w Unpackaged Authorware Windows file

.aab Macromedia Authorware Binary

.aam Authorware shocked file

.ab2 Parson's Address Book

.ab6 Datafile (ABStat)

.ab8 Datafile (ABStat)

.aba Palm Address Book file

.abc ABC FLOWCHARTER 1.x flowchart

ABC2K Audio/Video Controller Software

.abd AmBiz Bonus Calculator data file

Adventure Builder database

.abf Adobe Binary Font

.abk Automatic backup file (CorelDRAW)

.abm ImagePals Photo Album Document

Montage Photo Album file

PhotoPlus Album file

.abs Abstracts (info file)

Data file (Abscissa)

MPEG audio sound file

.abw AbiWord document

.abx WordPerfect Address Book file

.ac3 AC3 Audio File Format

.aca Microsoft Agent Character file

Project (Project Manager Workbench)

.acb Graphics (ACMB)

.acc Program (DR-DOS - ViewMax) (GEM / resident)

.acd Sonic Foundry Acid music file

.ace Ace Archiver compressed file

.acf Microsoft Agent Character file

.aci ACI Development Appraisal

.acl Document file (Audit Command Language)

.acm Audio Compression Manager Driver

Photoshop command button

Windows system file

ACBM image file

Interplay compressed Sound file

.acs MS Agent Character file

.act Actor source code file

Foxdoc Action Diagrams (FoxPro)

Presentation (Action!)

.acv OS/2 Audio Drivers

Photoshop Saved Curve

.ad Screen saver data (AfterDark)

.ada Ada source code file

.adb Ada Package Body

.adc Bitmap graphics (16 colors) (Scanstudio)

.adf Adapter Description file

Admin Config file

Amiga Disk File

Dog Creek QC Mask file

.adi Graphics (AutoCAD)

.adl Mca adapter description library (QEMM)

.adm After Dark Screen Saver Module

Windows Policy Template

Addict Compiled Dictionary

Advantage Data Server Database Memo file

.adn Add-in (Lotus 1-2-3)

.ado Photoshop Duotone Options

Stata Program

.adp FaxWorks Modem setup file

Astound Dynamite file

MS Access Project

AOLserver Dynamic Page file

.adr Address Book

Address Plus Database

After Dark Random Screen Saver Module

Opera Web Browser Bookmark file

Smart Address Address Book

.ads Ada Package Specification

.adt Datafile for cardfile application (HP NewWave)

Fax (AdTech)

.adx Document (Archetype Designer)

.adz GZ-Packed Amiga Disk file

.aeh iPer Advanced Embedded Hypertext

.aex PGP Armored Extracted Public Encryption Key

.af2 Flowchart (ABC FlowCharter 2.0)

.aff AnyForm Form file

.afi Truevision bitmap graphics

.afl Font file (for Allways) (Lotus 1-2-3)

.afm Type 1 font metric ASCII data for font installer (ATM - many)

Datafile for cardfile application (HP NewWave)

.aft AnyForm template file

.agp Aspen Graphics Pages

.agw Aspen Graphics Windows

.ai Vector graphics (Adobe Illustrator)

.ain Compressed file archive created by AIN

.aio APL file transfer format file

.ais Array of Intensity Samples graphics (Xerox)

.aix Datafile for cardfile application (HP NewWave)

.alb JASC Image Commander Album

Photo Soap2 file

Steinberg Cubase or VST Backup Song file

.albm webAlbum Photo Album

HP Photosmart Photo Printing Album

.all Format file for working pages (Always)

General printer information (WordPerfect for Win)

Symbol and font files (Arts & Letters)

.alt Menu file (WordPerfect Library)

.als Alias Image

Calmira Shortcut file

.alz ALZip Compressed file

.amf Music (Advanced Module Format)

.amg Compressed file archive created by AMGC

System image file (Actor)

.amp Photoshop Arbitrary Map Settings

.anc Animation file format (MorphInk)

.ani Animation (Presidio - many)

.anm Animation (Deluxe Paint Animator)

.ann Help Annotations (Windows 3.x)

.ans Ansi graphics (character animation)

Ascii text ANSI character set (NewWave Write)

.aos Add-On Software (Nokia 9000)

.ap Compressed Amiga file archive created by WHAP

Datafile (Datalex EntryPoint 90)

.apc Printer driver (Lotus 1-2-3)

.apd Printer driver (Lotus 1-2-3)

.ape Music format (different players)

.apf Printer driver (Lotus 1-2-3)

.api Passed parameter file (1st Reader)

Printer driver (Lotus 1-2-3)

.apl APL work space format file

.apm ArcPad 6 file

.app Add-in application file (Symphony)

Application object file (dBASE Application Generator)

Executable application file (DR-DOS - NeXTstep - Atari)

Generated application (FoxPro)

.apr Employee performance review (Employee Appraiser)

.aps MS Visual C++ file

ArcPad 5 Symbology file

.apx Appexpert database file (Borland C++ 4.5)

.arc Compressed file archive created by ARC (arc602.exe/pk361.exe)

Compressed file archive created by SQUASH (squash.arc)

.arf Automatic Response file

.arg AutoCAD Profile Export fileile

.ari Compressed file archive created by ARI

.arj Compressed file archive created by ARJ (arj241.exe)

.ark Arc file archive created by CP/M port of ARC file archiver

Compressed file archive created by QUARK

.arl AOL Organizer File

.arr Arrangement (Atari Cubase)

.art Graphics (scrapbook) (Art Import)

Raster graphics (First Publisher)

.arv Arsiv File

AutoRoute User Information

.arx Compressed file archive created by ARX

.asa MS Visual InterDev file

Active Server Document

.asc Ascii text file

Transport armor file (PGP)

.ascx Microsoft ASP.NET user control file

.asd Autosave file (Word for Windows)

Presentation (Astound)

Screen driver (Lotus 1-2-3)

.asf Datafile (STATGRAPHICS)

Screen font (Lotus 1-2-3)

.ash Assembly language header file (TASM 3.0)

.asi Assembler include file (Turbo C - Borland C++)

.asm Assembly source code file

Pro/Engineer Assembly file

.asmx Microsoft .NET Web Service file

.aso Assembler object (object orientated) file (Turbo Assembler)

.asp Microsoft Active Server Page

Aspect source code file (Procomm Plus)

Association of Shareware Professionals OMBUDSMN.ASP notice

.aspx Microsoft ASP.NET file

.asr Ms Automap Route

Photoshop Scratch Area

.asx Microsoft Windows Media Active Stream Redirector file

.at2 Auto template (Aldus Persuasion 2.0)

.atm Adobe Type Manager data/info

.atn Adobe Photoshop Action file

.atr Lightscape Material Library

.att AT&T Group 4 Bitmap

.au Sound (audio) file (SUN Microsystems)

.aud Audio file

.aut AutoIt Script

PocketWear Car Lease Kit vehicle data file

TLG Workplace CD search file

Xitami Webserver Admin Password file

GPSMan-autoMapic file

Signwave Auto-Illustrator file

Descent Manager Mission file

Authentication file (various)

Interactive Pictures iPIX Format

.aux Auxillary references (TeX/LaTeX)

Auxiliary dictionary (ChiWriter)

.ava Publication (Avagio)

.avb Inoculan Anti-Virus virus infected file

Microsoft Chat character file

.avd Avery Label Pro Data file

.avi Audio Video Interleaved animation file (Video for Windows)

.avs Animation file

Application Visualization System Format

Stardent AVS-X image

Winamp Advanced Visualization Studio file

.avx ArcView file

.aw Text file (HP AdvanceWrite)

.awb Lavasoft Ad-aware backup file

.awd AWD MS Fax

Award BIOS file

AWK Language Source Code file

.awe Adobe Acrobat Bookmark XML file

.awk Awk script/program

.awm Movie (Animation Works)

.awr Telsis Digital Audio file


.ax DirectShow Filter

.axd Avery Label Pro Re-Index file

.axg MS Autoroute Trip file

.axe Paradigm C++ Integrated Debugger file


MS Autoroute export file

.axl ArcIMS XML Project file

.axt ZenWorks snAPPshot ASCII Application Object template

Photoshop Replace Color/Color Range

.b Batch list (APPLAUSE)

.b&w Black and white graphics (atari - mac)

Mono binary screen image (1st Reader)

.b1n Both mono and color binary screen image (1st Reader)

.b1s Booksmith

.b30 Printer font (JLaser - Cordata) (Ventura Publisher)

.b3d 3D Builder file

.b8 Raw graphics (one byte per pixel) plane two (PicLab)

.b_w Black and white graphics (atari - mac)

.bad Bad file (Oracle)

.bag PMMail Mail Index file

OS/2 Netfinity Manager Sysinfo file

AOL Instant Messenger file

.bak Backup file

.bal Music score (Ballade)

.bar Horizontal bar menu object file (dBASE Application Generator)

.bas Basic source code file

.bat Batch file (DOS)

.bb Database backup (Papyrus)

.bbl Bibliographic reference (TeX/BibTeX)

.bbm Brush (Deluxe Paint)

.bbs Bulletin Board System announce or text info file

.bcf ConfigSafe Snapshot index

The Sims (Maxis) File

.bch Batch process object file (dBASE Application Generator)

Datafile (Datalex EntryPoint 90)

.bck Backup

.bcm MS Works Communications file

.bco Outline font description (Bitstream)

.bcp Borland C++ makefile

.bcw Environment settings (Borland C++ 4.5)

.bde Borland Database Engine

.bdf Bitmap Distribution Format font file (X11)

Datafile (Egret)

.bdr Border (MS Publisher)

.bez Outline font description (Bitstream)

.bf2 Bradford 2 font

.bfm Font metrics (unix/Frame)

.bfx Fax (BitFax)

.bga Bitmap graphics

.bgi Borland Graphics Interface device driver

.bgl Flight Simulator scenery file

.bib Bibliography (ASCII)

Database - not compatible with TeX format (Papyrus)

Literature database (TeX/BibTeX)

.bic Civilization III Scenario

.bid BidMaker 2002 file

.bif Binary Image Format b&w graphics (Image Capture board)

.bik BioCharter Profile backup file

Bink Game video file

.bin Binary file

.bio OS/2 BIOS

.bit Bitmap Image

Worms Armageddon Imported Map

Worms World Party Imported Map

.bk Faxbook (JetFax)

.bk! Document backup (WordPerfect for Win)

.bk1 Timed backup file for document window 1 (WordPerfect for Win)

.bk2 Timed backup file for document window 2 (WordPerfect for Win)

.bk3 Timed backup file for document window 3 (WordPerfect for Win)

.bk4 Timed backup file for document window 4 (WordPerfect for Win)

.bk5 Timed backup file for document window 5 (WordPerfect for Win)

.bk6 Timed backup file for document window 6 (WordPerfect for Win)

.bk7 Timed backup file for document window 7 (WordPerfect for Win)

.bk8 Timed backup file for document window 8 (WordPerfect for Win)

.bk9 Timed backup file for document window 9 (WordPerfect for Win)

.bkf Microsoft Backup file

.bkg Background file

UWXAFS Binary Format Data file

.bkp Backup file (Write - TurboVidion DialogDesigner)

.bkw Mirror image of font set (FontEdit)

.blb DreamWorks Resource Archive

.bld Bloadable picture (BASIC)

.blk Temporary file (WordPerfect for Win)

Lightscape Block Library

Alias Wavefront Image

VersaPro Block

.blt Saved AIM Buddy List file

Wordperfect for DOS file

.bm Bitmap graphics

.bmf Corel Image file

.bmk Help Bookmarks (Windows 3.x)

.bmp Bitmap graphics (PC Paintbrush - many)

.bmx Buzz music file

.bnd Typequick file

.bnk Adlib instrument bank file

.bob BobDown Downloading Program

Bob Raytracer

.bom MicroSim PCBoard Bill of Materials

Orcad Schematic Capture Bill of Materials file

Softshare Delta Business Object Model

.boo Compressed file ASCII archive created by BOO (msbooasm.arc)

.box Myriad Jukebox file

Notes Mailbox

.bpc Chart (Business Plan Toolkit)

.bpl Delphi Library

.bpt Bitmap fills file (CorelDRAW)

.bqy BrioQuery file

.br Script (Bridge)

.brd Eagle Layout file

.brf Braille ASCII file

.brk Fax (Brooktrout Fax-Mail)

.bro Tree Professional Broadleaf Creator file

.brp Tree Professional Broadleaf Creator image

.brt Micrografx Picture Publisher file

.brx Multimedia browsing index

.bsa Compressed file archive created by BSARC

.bsb MapInfo Sea Chart

SWAT Sub-basin Output file

.bsc Compressed Apple II file archive created by BINSCII

Database (Source Browser)

Pwbrmake object file (MS Fortran)

.bsl BSPlayer Configuration file

.bsp Half-life/TFC/CS Map

Quake Map

.bst BibTeX Style file

.btm Batch To Memory batch file (4DOS)

.bto Baytex Organix! 2001 Language Kit

.btr Btrieve Database file

MS Frontpage-related file

.bud Quicken Backup

.bug Bugs and Problems

.bup Backup file

.but Button definitions (Buttons!)

.buy Datafile format (movie)

.bv1 Overflow file below insert point in Doc 1 (WordPerfect for Win)

.bv2 Overflow file below insert point in Doc 2 (WordPerfect for Win)

.bv3 Overflow file below insert point in Doc 3 (WordPerfect for Win)

.bv4 Overflow file below insert point in Doc 4 (WordPerfect for Win)

.bv5 Overflow file below insert point in Doc 5 (WordPerfect for Win)

.bv6 Overflow file below insert point in Doc 6 (WordPerfect for Win)

.bv7 Overflow file below insert point in Doc 7 (WordPerfect for Win)

.bv8 Overflow file below insert point in Doc 8 (WordPerfect for Win)

.bv9 Overflow file below insert point in Doc 9 (WordPerfect for Win)

.bwb Spreadsheet application (Visual Baler)

.bwi Blindread/Blindwrite

.bwr Beware (buglist) (Kermit)

.bwt Blindread/Blindwrite

.bxx blaxxun Contact

.bz2 Bzip 2 UNIX Compressed file

.c C source code file

Compressed unix file archive created by COMPACT

.c++ C++ source code file

.c-- Source code (Sphinx C--)

.c00 Print file (Ventura Publisher)

.c60 Midtronics Battery Management Software

.c86 C source code file (Computer Innovation C86)

.ca Initial cache data for root domain servers (Telnet)

.cab Cabinet File (Microsoft installation archive)

.cad Softdesk Drafix CAD File

.cac dBASE IV executable when caching on/off (see cachedb.bat)

.cad Document (Drafix Windows CAD)

.cag MS Clip Gallery Catalog file

.cal Calendar file (Windows 3.x)

Calendar Maker Pro

Spreatsheet (SuperCalc)

.cam Casio Camera Graphic

.can Fax (Navigator Fax)

.cap Caption (Ventura Publisher)

Session capture file (Telix)

.car AtHome Assistant file

Carrara Environment

NeoBook Cartoon

.cas Comma-delimited ASCII File

.cat Catalog (dBASE IV)

.cbc Fuzzy logic system (CubiCalc)

.cbf Calendar Builder file

.cbl Cobol source code file

.cbm Compiled bitmap graphics (XLib)

.cbp CentralBuilder Project

.cbt Computer Based Training (many)

.cc C++ source code file

.cca CC:Mail archive file

.ccb Visual Basic Animated Button Configuration

.ccc Bitmap graphics (native format) (Curtain Call)

.ccd CloneCd Related file

Vector CAD Program file

.cce Calendar Creator 2 Event file

.ccf Communications configuration file (Symphony)

.cch Chart (CorelChart)

.ccl Communication Command Language file (Intalk)

.cco Btx Graphics file (XBTX)

.cct Macromedia Director Shockwave file

.ccx Corel PrintHouse file

.cda CD Audio Track

.cdb Card database (CardScan)

Main database (TCU Turbo C Utilities)

.cde Honeywell Hybrid Control Designer

.cdf Graphics (netcdf)

.cdi Phillips Compact Disk Interactive format

.cdk Document (Atari Calamus)

.cdl CaseWare Working Papers Document Link

SignLab Vector Graphic

.cdm Visual dBASE Custom Data Module

.cdp CD/Spectrum Pro

.cdr Vector graphics (CorelDRAW native format)

.cdt Data (CorelDraw 4.0)

.cdx Compound index (FoxPro)

.ce Main.ce (The FarSide Computer Calendar)

.ceg Bitmap graphics (Tempra Show - Edsun Continuous Edge Graphics)

.cel Graphics (Autodesk Animator - Lumena)

.cf Configuration file (imake)

.cfb Comptons multimedia file

.cfg Configuration

.cfl Chart (CorelFLOW)

.cfm ColdFusion Markup Language (Allaire)

.cfn Font data (Atari Calamus)

.cfo C Form Object internal format object file (TCU Turbo C Utilities)

.cfp Fax (The Complete Fax Portable)

.cga CGA display font (Ventura Publisher)

.cgi Common Gateway Interface script

.cgm Computer Graphics Metafile vector graphics (A&L - HG - many)

.ch Header file (Clipper 5)

.ch3 Chart (Harvard Graphics 3.0)

.ch4 Presentation (Charisma 4.0)

.chd Font descriptor (FontChameleon)

.chi Document (ChiWriter)

.chk Recovered data (ChkDsk)

Temporary file (WordPerfect for Win)

.chl Configuration History Log

.chm Compiled HTML

.chn Data (Ethnograph 3)

.cho ChordPro file

.chp Chapter file (Ventura Publisher)

.chr Character set (Turbo C - Turbo Pascal)

.cht Chart (Harvard Graphics 2.0 - SoftCraft Presenter)

Interface file for ChartMaster (dBASE)

.cif Caltech Intermediate Format graphics

Chapter information (Ventura Publisher)

.cil Clip Gallery Download Package

.cix Database index (TCU Turbo C Utilities)

.ckb Keyboard mapping (Borland C++ 4.5)

.cl Common LISP source code file

.cl3 Easy CD Creator Layout file

.cl4 Easy CD Creator Layout file

.cl5 Easy CD Creator Layout file

.clb ICQ Contact List

MS Office XP Developer Code Librarian

cdrLabel Compact Disc Label

.clp Clip art graphics (Quattro Pro)

Clipboard file (Windows 3.x)

Compiler script file (clip list) (Clipper 5)

.clr Color binary screen image (1st Reader)

Color definitions (Photostyler)

.cls C++ class definition file

.cm Data file (CraftMan)

.cmd Batch file (OS/2)

Command (dBASE - Waffle)

External command menu (1st Reader)

.cmf FM-music file (Creative Music File)

.cmk Card (Card Shop Plus)

.cmm Cmm script (batch) file (CEnvi)

.cmo Virtools Composition file

.cmp Header file for PostScript printer files (CorelDRAW)

User dictionary (MS Word for DOS)

Bitmap graphics (Lead CMP compression)

.cmq Culturemetrics file

.cmt Culturemetrics file

.cmv Animation (CorelMove CorelDraw 4.0)

.cmx Corel PhotoPaint Image

Corel Presentation Exchange Image

The Sims (Maxis) 3D Body Mesh Data

Apple Viewer file

.cnc CNC general program data

.cnd ControlDraw file

Embroidery Design file

.cnf Configuration (program - printer setup)

.cnt Helpfile contents

.cnv Data conversion support file (Word for Windows)

Temporary file (WordPerfect for Win)

.cob Cobol source code file

.cod Datafile (Forecast Plus - MS Multiplan - StatPac Gold)

Program compiled code (FORTRAN)

Template source file (dBASE Application Generator)

Videotext file

.col Color palette (Autodesk Animator - many)

Spreadsheet (MS Multiplan)

.com Command (memory image of executable program) (DOS)

.con Configuration file (Simdir)

.cor Protein Structure file

Web GPS Correction Server Export file

WMOVIEC Input file

.cpd Script (Complaints Desk)

.cpe MS Fax Cover Sheet

.cpf Fax (The Complete Fax)

.cph Corel Print House image

.cpi Code Page Information file (DOS)

Colorlab Processed Image bitmap graphics

.cpl Control panel file (Windows 3.x)

Presentation (Compel)

.cpo Corel Print House file

.cpp C++ source code file

Presentation (CA-Cricket Presents)

.cps Backup of startup files by Central Point PC Tools autoexec.cps

coloured postscript files

.cpt Compressed Mac file archive created by COMPACT PRO (

Corel Photo-Paint Image

Encrypted memo file (dBASE)

Template (CA-Cricket Presents)

.cpx Control Panel Applet

Corel Presentation Exchange Compressed Drawing

.cpy Copy Books Data file

.cpz Music text file (COMPOZ)

.crd Cardfile (Windows 3.x - YourWay)

ColdRED Script file

Guitar Chord file

.crf Cross-reference (MS MASM - Zortech C++)

.crh Links Games Course file

MS Golf Image file

.crp Encrypted database (dBASE IV)

.crs File Conversion Resource (WordPerfect 5.1)

.crt Terminal settings information (Oracle)

.cru Compressed file archive created by CRUSH

.crx Links Games Course file

.crz Links Games Course file

.csa Comma Deliminated Text

Ultimate Ride Roller Coaster

.csf Van Dyke's CRT/SecureCRT Script file

.csg Graph (Statistica/w)

.csh Hamilton Labs C Shell Script file

.csk Claris Works

.csm Precompiled headers (Borland C++ 4.5)

.csp Pc Emcee Screen Image file (Computer Support Corporation)

.css Datafile (CSS - Stats+)

Datasheet (Statistica/w)

.cst Macromedia Director Cast file

.csv Comma Separated Values text file format (ASCII)

Adjusted EGA/VGA palette (CompuShow)

.ctc Control file (PC Installer)

.ctd Cobra Track Dump

Cardtable file

Marine Data file

Simpsons Cartoon Studio Export file

.ctf Character code translation file (Symphony)

.ctg Cartridge Definition file

ChessBase Opening Book

Canon Powershot Pro 70 Info file

.ctl Control file (dBASE IV - Aldus Setup)

Setup information

.ctt Labview file

.ctx Course TeXt file (Microsoft online guides)

Ciphertext file (Pretty Good Privacy RSA System)

.cty SimCity City file

.cue MS Cue Cards data

.cuf C Utilities Form definition (TCU Turbo C Utilities)

.cul Windows cursor library (IconForge, ImageForge, ImageForge PRO)

.cur Cursor image file (Windows 3.x)

.cut Bitmap graphics (Dr. Halo)

.cv4 Color file (CodeView)

.cv5 Canvas version 5

.cva Compaq Diagnostics

.cvp Cover page (WinFax)

.cvr WinFax Cover Sheet

ElectraSoft Fax Cover Sheet

.cvs Graphics (Canvas)

.cvt Backup file for CONVERTed database file (dBASE IV)

.cvw Color file (CodeView)

.cwk Claris Works data

.cwz CropWalker file

.cxt Macromedia Director Protected Cast file

.cxx C++ source code file (Zortech C++)

.d2s Character file (Diablo 2)

.d64 Commodore 64 Emulator Disk Image

.dat Data file in special format or ASCII

Gunlok Archive

Mitsubishi DJ-1000 and Photorun Native Format

Nascar Racing Archive

SPOT Graphic

WordPerfect Merge Data

.db Configuration (dBASE IV - dBFast)

Database (Paradox - Smartware)

.db$ Temperature debug info (Clarion Modula-2)

Temporary file (dBASE)

.db2 Database (dBASE II)

.db3 Database (dBASE III)

.dba Datafile (DataEase)

.dbb ANSYS Database Backup

Mopheus music file

.dbd Business data (Business Insight)

Debug info (Clarion Modula-2)

.dbf Database file (dBASE III/IV - FoxPro - dBFast - DataBoss)

Oracle 8.x Tablespace File

.dbg Symbolic debugging information (MS C/C++)

.dbk Database backup (dBASE IV)

.dbl Windows XP Activation file

.dbm Datafile (DataEase)

Menu template (DataBoss)

.dbo Compiled program (dBASE IV)

.dbs Database in SQL Windows format

Datafile (PRODAS)

Printer description file (Word - Works)

.dbt Data Base Text (Clipper)

Foxbase+ style memo (FoxPro)

Memo file for database w/same name (dBASE IV - dBFast)

.dbw Windows file (DataBoss)

.dbx Database

DataBeam Image

MS Visual Foxpro Table

.dca Document Content Architecture text file (IBM DisplayWrite)

.dcf Disk image file

.dcm DCM Module Format


.dcp Data CodePage (OS/2)

.dcr Kodak Proprietary Image Format

Shockwave file

.dcs Bitmap graphics (CYMK format) (QuarkXPress)

Datafile (ACT! Activity Files)

.dct Database dictionary (Clarion Database Developer)

Spell checking dictionary (Harvard Graphics 3.0 - Symphony)

.dcx FAX Image

ElectraSoft Fax

PC-Paintbrush file

Bitmap Graphics (Multipage PCX)


MS Visual Foxpro Database Container

.dd Compressed Macintosh file archive created by DISKDOUBLER

.ddb Bitmap graphics

.ddf MS Data Definition Language file

.ddi Diskdupe Image file (

.ddp Device Driver Profile file (OS/2)

.de MetaProducts Download Express incompletely downloaded file

.deb Debug script (DOS Debug)

.dec VersaPro Declaration file

.def Assembly header file (Geoworks)

Defaults - definitions

.dem Demonstration

Graphics (VistaPro)

.des Description Text

Tribes 2 Game file

Quickbooks Template

Pro/DESKTOP file

Interscope BlackBox file

.dev Device driver

.dfd Data Flow Diagram graphic (Prosa)

.dff Criterion RenderWare 3.x 3D object format

.dfi Outline font description (Digifont)

.dfl Default program settings (Signature)

.dfm Data Flow Diagram model file (Prosa)

.dfs Delight Sound file

.dft Fakt2000 file

SolidEdge CAD file

Workshare Synergy file

PC Draft file

.dfv Printing form (Word)

.dgn Graphics (MicroStation)

.dgr Fax Page (MS Outlook Express)

DART Pro 98 File Group Details

.dgs Diagnostics

.dh Dependency information for .ph (Geoworks)

.dhp Dr. Halo PIC Format graphics (Dr. Halo II - III)

.dht Datafile (Gauss)

.dia Diagraph graphics (Computer Support Corporation)

.dib Bitmap graphics (Device-Independent Bitmap)

.dic Lotus Notes / Domino dictonary file

.dif Database (VisiCalc)

Output from Diff command - script for Patch command

Text file (Data Interchange Format)

.dig Digilink Format

Sound Designer Audio File

Text Document

.dip Graphics

.dir Dialing directory file (Procomm Plus)

Directory file (VAX)

Movie (MacroMind Director 4.x)

.dis Distribution file (VAX Mail)

Thesaurus (CorelDraw)

.diz Description file (Description In Zip)

.dje MattBatt iAM-player

.dkb Raytraced graphics (DKBTrace)

.dl Animation (Italian origin)

.dl_ Compressed .dll file in an Install Archive

.dld Data (Lotus 1-2-3)

.dlg Dialog resource script file (MS Windows SDK)

.dll Dynamic Link Library (Windows 3.x - OS/2)

Export/import filter (CorelDRAW)

.dls Setup (Norton Disklock)

.dmf Delusion/XTracker digital music file

Packed Amiga Disk Image

.dmg Macintosh OS X Disk Image file

.dml Medical Manager DML System Script

.dmo Demo (Derive)

.dmp Dump file (eg. screen or memory)

.dms Compressed Amiga file archive created by DISKMASHER

.dna Desktop DNA data storage file

.dnasym Desktop DNA compiled application script

.dnax Desktop DNA exclusion list (text)

.dne Netica Bayes net file (Norsys Software Corp.)

.dng Dungeon file

.dnl DigitalWebBook Electronic Book

netMod Modem Firmware Upgrade file

.doc Document text file

.dog Screen file (Laughing Dog Screen Maker)

.doh Dependency information for .poh (Geoworks)

.dos External command file (1st Reader)

Network driver (eg. pkt_dis.dos)

Text file containing DOS specific info

.dot Line-type definition file (CorelDRAW)

Template (Word for Windows)

.dox Text file (MultiMate 4.0)

.doz Description Out of Zip (VENDINFO)

.dp Calendar file (Daily Planner)

Data file (DataPhile)

.dpk Delphi Package file

.dpp Serif DrawPlus Drawing

.dpr Default project- and state-related information (Borland C++)

.dps DivX XP Skin

.dpt Desktop DNA template

.drs Display Resource (WordPerfect for Win)

.drv Device driver eg. for printer

.drw Drawing (various)

Vector graphics (Micrografx Designer)

.ds4 Vector graphics (Micrografx Designer 4.0)

.dsa DasyTec DASYLab file

.dsb DasyTec DASYLab file

.dsc Discard file (Oracle)

.dsd Database (DataShaper)

.dsf Micrografx Designer

PC-TRUST Document Signer

Delusion/XTracker Digital Sample

.dsk Project desktop file (Borland C++ - Turbo Pascal)

.dsm Digital sound module (DSI)

.dsn Design (Object System Designer)

.dsp Display parameters (Signature)

Graphics display driver (Dr.Halo)

MS Developer Studio Project

.dsr Driver Resource (WordPerfect for Win)

.dss Screensaver file (DCC)

Sound (Digital Soup)

.dst PC-RDist Distribution file

Embroidery Machine Stitch file (VeePro)

.dsw Desktop settings (Borland C++ 4.5)

.dsy PC Draft Symbol Library

.dt_ Data fork of a Macintosh file (Mac-ette)

.dta Data file (Turbo Pascal - PC-File - Stata)

.dtd SGML Document Definition file

.dtf Database file (PFS - Q&A)

.dtp Document (Timeworks Publisher3)

Publication (Publish-It!)

.dup Duplicate Backup

.dus Readiris font dictionary

.dvc Data (Lotus 1-2-3)

.dvf DV Studio Camcorder Graphics file

.dvi Device Independent document (TeX)

.dvp Desqview Program Information file (DESQview)

Device parameter file (AutoCAD)

.dw2 Drawing (DesignCAD for windows)

.dwc Compressed file archive created by DWC (dwc-a501.exe)

.dwd Davka Writer file

DiamondWare Digitized file

.dwf Autodesk WHIP! Drawing Web file

MS WHIP autoCAD REader Drawing Web file

.dwg Drawing (Drafix)

Drawing database (AutoCAD)

.dwt AutoCAD Template/Prototype file

Macromedia Dreamweaver Template file

Demon's World Game Texture file

.dx Text file (DEC WPS/DX format - DEC WPS Plus)

.dxf Drawing Interchange File Format vector graphics (AutoCAD)

.dxn Fax (Fujitsu dexNET)

.dxr Dependable Strengths Administrator Resources

Green Building Advisor file

Macromedia Director Protected Movie file

.dyc ICUII Videochat file

.dyn Data (Lotus 1-2-3)

.dz Dzip Compressed file

.ear Java Enterprise Application Packaging Unit

.eas Elite Visual Basic API Spy

.ebj Error-checking object file (Geoworks)

.ebo MS Reader Ebook Format

.ebp Pocket PC WindowsCE Project file

.ecf WinFax Office Add-in file

.eco NetManage ECCO file

.ecw Ensoniq Waveset Format

EclipseCrossword Crossword Puzzle

.edb MS Exchange Database

ROOTS3 geneological data

.edl Edit Decision List (management for video/film post production)

.eds Ensoniq SQ80 disk image

.edt Default settings (VAX Edt editor)

.eeb Button bar for Equation Editor (WordPerfect for Win)

.efe Ensoniq EPS file

.eft High resolution screen font (ChiWriter)

.efx Fax (Everex EFax)

.ega EGA display font (Ventura Publisher)

.ek5 SonarData Echoview file

.ek6 SonarData Echoview file

.ekm EXP: The Scientific Word Processor Macro

.el Elisp source code file (Emacs lisp)

.elc Compiled ELISP code (Emacs lisp)

.elm MS FrontPage Theme-Pack file

.elt Event list text file (Prosa)

.email Outlook Express Mail Message

.emb Everest Embedded Bank File

.emd ABT Extended Module

.emf Enchanced Metafile graphics

.eml MS Outlook Express Electronic Mail

.emp E-Music File Format

.ems PC Tools Enhanced Menu System Config

.emu Terminal emulation data (BITCOM)

.emx Ensuredmail encrypted file/e-mail message

.enc Encoded file - UUENCODEd file (Lotus 1-2-3 - uuexe515.exe)

Music (Encore)

.end Arrow-head definition file (CorelDRAW)

.eng Dictionary engine (Sprint)

Graphics (charting) (EnerGraphics)

.ens EndNote Styles file

.env Enveloper macro (WOPR)

Environment file (WordPerfect for Win)

.eot MS WEFT Embedded OpenType file

.epd Publication (Express Publisher)

.epi Document (Express Publisher)

.epp EditPad Pro Project

.eps Encapsulated PostScript vector graphics (Adobe Illustrator)

Printer font (Epson - Xerox...) (Ventura Publisher)

.eqn Equation (WordPerfect for Win)

.erd Entity Relationship Diagram graphic file (Prosa)

.erm Entity Relationship Diagram model file (Prosa)

.err Error log

Error messages for command line compilers

.esh Extended Shell batch file

.esl MS Visual FoxPro Distributable Support Library

.esp Ventura file

.ess EXP: The Scientific Word Processor Style Sheet

.est MS Streets & Trips 2001 Trip file

.etf Enriched Text file

PolyEdit file

.eth Document (Ethnograph 3)

.etx Structure Enhanced (setext) text

.ev SonarData Echoview file

.evi SonarData Echoview file

.evl SonarData Echoview file

.evr SonarData Echoview file

.evt Event log

.evy Document (WordPerfect Envoy)

.ewd Document (Express Publisher for Windows)

.ewl EclipseCrossword Word List

Microsoft Encarta Document

.ex_ Compressed .EXE File in an Install Archive

.ex3 Device driver (Harvard Graphics 3.0)

.exc Rexx source code file (VM/CMS)

Exclude file for Optimize (do not process) (QEMM)

.exd Control Information Cache

.exe Directly executable program (DOS)

.exm Msdos executable, system-manager compliant (HP calculator)

.exp ICQ Saved Chat file

.ext Extension file (Norton Commander)

.exx Intermediate file by MsgPut (IBM LinkWay)

.ezf Fax (Calculus EZ-Fax)

.ezm Text file

.ezp Edify Electronic Workforce Backup Utility

.f Fortran source code file

Compressed file archive created by FREEZE

.f01 Fax (perfectfax)

.f06 Dos screen text font - height 6 pixels (

.f07 Dos screen text font - height 7 pixels (

.f08 Dos screen text font - height 8 pixels (

.f09 Dos screen text font - height 9 pixels (

.f10 Dos screen text font - height 10 pixels (

.f11 Dos screen text font - height 11 pixels (

.f12 Dos screen text font - height 12 pixels (

.f13 Dos screen text font - height 13 pixels (

.f14 Dos screen text font - height 14 pixels (

.f16 Dos screen text font - height 16 pixels (

.f2 FLASH BIOS file

.f2r Linear module (music) (Farandole)

.f3r Blocked module (music) (Farandole)

.f77 Fortran 77 source code file

.f96 Fax (Frecom FAX96)

.fac Face graphics

.faq Frequently Asked Questions text file

.far Farandoyle Tracker Music Module

The Sims (Maxis) Archive file

.fav MS Outlook Bar Shortcuts

.fax Fax (raster graphics) (most Fax programs)

.fbc FamilyTree Compressed backup file

.fbk Navison Financials Backup

FamilyTree Backup file

.fc Spell checking dictionary (Harvard Graphics 2.0)

.fcd Virtual CD-ROM

FastCAD/EasyCAD Output

Patton & Patton Flow Charting 3 file

IsoBuster file

.fcm Binary file patch file (forward compression)(

.fcp FLAMES Checkpoint Restart file (Ternion)

.fcs Flow Cytometry Standard Format

Fantasy Football League Organizer file

RealProducer Pro Settings

c-tree Server/Plus Data file

Canon Zoom Browser EX file

CD Trustee file

Spectrum Server Log file

.fcw Campaign Cartographer 2 file

.fd Declaration file (MS Fortran)

Field offsets for compiler (DataFlex)

.fdf Adobe Acrobat Forms document

.fdr Final Draft Document file

Embroidery Design file

.fdw Form (F3 Design and Mapping)

.feb Button bar for Figure Editor (WordPerfect for Win)

.fes Fabio Editing Software

.ff Outline font description (Agfa Compugraphics)

.ffa MS Fast Find file

.fff Fax (defFax)

.ffl MS Fast Find file

.ffo MS Fast Find file

.fft Dca/FFT Final Form Text text file (DisplayWrite)

.ffx Microsoft Fast Find file

.fgd Folder Guard Data

Half-life Modification Map Configuration file

Digital Raster Graphic Metadata file

.fh3 Vector graphics (Aldus FreeHand 3.x)

.fh4 Vector graphics (Aldus FreeHand 4.x)

.fh5 Freehand 5

.fh6 Freehand 6

.fh7 Freehand 7

.fh8 Macromedia Freehand 8

.fh9 Macromedia Freehand 9

.fh10 Macromedia Freehand 10

.fi Interface file (MS Fortran)

.fif Fractal Image Format file

.fig REND386/AVRIL Graphic

Super Nintendo Game-console ROM Image

.fil File template (Application Generator)

Files list object file (dBASE Application Generator)

Overlay (WordPerfect)

.fin Print-formatted text file (Perfect Writer - Scribble - MINCE)

.fit Fits graphics

File Index Table (WindowsNT)

.fix Patch file

.fky Macro file (FoxPro)

.fla Macromedia Flash

.flb Format library (Papyrus)

.flc Animation (Autodesk Animator)

.fld Folder (Charisma)

.fli Tex font library (EmTeX)

Animation (Autodesk Animator)

.flm Film Roll (AutoCAD/AutoShade)

.flo Micrografx FlowCharter

.flp FlipAlbum file

Fruityloops Saved file

.flt Asymetrix Graphics Filter Support file

CoolEdit Pro Filter

Corel Graphic Filter

FileMaker Filter

FLIC Animation (DTA)

Micrografx Picture Publisher Filter

MS Graphics Filter

MulitGen Open Flight file

OS/2 Warp Filter Device Driver

StarTrekker Music Module

WinFlash Educator Flashcard Compiled Test file

.flv Macromedia Flash Video file

.flx Compiled binary (DataFlex)

.fm Spreatsheet (FileMaker Pro)

.fm1 Spreadsheet (Lotus 1-2-3 release 2.x)

.fm3 Device driver (Harvard Graphics 3.0)

Spreadsheet (Lotus 1-2-3 release 3.x)

.fmb File Manager Button bar (WordPerfect for Win)

.fmf Font or icon file (IBM LinkWay)

.fmk Makefile (Fortran PowerStation)

.fmo Compiled format file (dBASE IV)

.fmp FileMaker Pro Document

.fmt Format file (dBASE IV - FoxPro - Clipper 5 - dBFast)

Style sheet (Sprint)

.fmv Frame Vector Metafile

.fn3 Font file (Harvard Graphics 3.0)

.fnt Font file (many)

.fnx Inactive font (Exact)

.fo1 Font file (Borland Turbo C)

.fo2 Font file (Borland Turbo C)

.fol Folder of saved messages (1st Reader)

.fon Dialing directory file (Telix)

Font file (many - Windows 3.x font library)

Log of all calls (Procomm Plus)

.for Fortran source code file

Form (WindowBase)

.fot Installed Truetype font (Windows Font Installer)

.fp Configuration file (FoxPro)

.fp3 FileMaker Pro 3.0 and earlier files

.fp4 FileMaker Pro 4.0

.fp5 FileMaker Pro 5.0 and later files

.fpb FLAMES Playback file (Ternion)

.fpc Catalog (FoxPro)

.fpk JetForm FormFlow file

.fpr FLAMES Prototype file (Ternion)

.fpt Memo (FoxPro)

.fpw Floorplan drawing (FloorPLAN plus for Windows)

.fpx FlashPix Bitmap

.fqy FLAMES FLARE Command file (Ternion)

.fr3 Renamed dBASE III+ form file (dBASE IV)

.frc FLAMES RECORD Output file; FLARE Input file (Ternion)

.fre Creative Digital Blaster Digital VCR file

Male Normal CT

.frf Font (FontMonger)

.frg Uncompiled report file (dBASE IV)

.frl FormFlow file

.frm Form (Visual Basic)

Report file (dBASE IV - Clipper 5 - dBFast)

Text (order form)

.fro Compiled report file (dBASE IV)

.frp Form (PerForm PRO Plus - FormFlow)

.frs Screen Font Resource (WordPerfect for Win)

.frt Report memo (FoxPro)

.frx Report (FoxPro)

.fsc FLAMES Scenario file (Ternion)

.fsh EA Sports Game Graphic Editor file

.fsl Form (Paradox for Windows)

.fsm Farandoyle Sample format music

.fst Linkable program (dBFast)

.fsx Data (Lotus 1-2-3)

.fsy Fileware's Filesync

.ftm Font file (Micrografx)

.ftp Configuration (FTP Software PC/TCP)

.fts Windows Help Full-Text Search Index file

.ftw Family file


.fvt Interlock Public Computer Utility

.fw Database (FrameWork)

.fw2 Database (Framework II)

.fw3 Database (Framework III)

.fx On-line guide (FastLynx)

.fxd Phonebook (FAXit)

.fxm WinFax/WinFax MiniViewer Fax

.fxo Fax Image Document

.fxp Compiled format (FoxPro)

.fxr WinFax Received Document

.fxs Fax Transmit Format graphics (WinFax)

.g Data chart (APPLAUSE)

.g3f Zetafax TIFF file (fine resolution)

.g3n Zetafax TIFF file (normal resolution)

.g8 Raw graphics (one byte per pixel) plane three (PicLab)

.gal Corel Multimedia Manager Album

.gam Fax (GammaFax)

TADS 2.x Game file

Baldur's Gate Game file

Animated E-mail

.gat Gator file

.gb GameBoy ROM

.gba Game Boy Advanced ROM

GrabIt Batch files

.gbc Game Boy COlor ROM

.gbd Gator Banner file

.gbl Global definitions (VAXTPU editor)

.gbr GIMP Brush file

Gerber Format file

.gbx Gerber file

.gc1 Lisp source code (Golden Common Lisp 1.1)

.gc3 Lisp source code (Golden Common Lisp 3.1)

.gcd Graphics

.gdb Interbase Database

Group Mail file

.gdf Dictionary file (GEOS)

.gdr Bitmap Font file (SymbianOS)

.ged Editor's native file format (Arts & Letters)

GEDCOM Family History file

Graphic Environment Document

Graphics editor file (EnerGraphics)

.gem Vector graphics (GEM - Ventura Publisher)

.gen Compiled template (dBASE Application Generator)

Generated text (Ventura Publisher)

Genius Family Tree

.geo Geode (Geoworks)

.gfb Compressed GIF image created by GIFBLAST (gifblast.exe)

.gft Font (NeoPaint)

.gfx Genigraphics Graphics Link Presentation

.gho Symantec Ghost Disk image file

.ghs Lasertank High Scores

Symantec Ghost Disk Image Span file

.gib Chart (Graph-in-the-Box)

.gid Windows Help index file

.gif Graphics Interchange Format bitmap graphics (CompuShow)

.gig Sound file

.giw Presentation (Graph-in-the-Box for Windows)

.gl Animation (GRASP GRAphical System for Presentation)

.glm Datafile (Glim)

.gls Datafile (Across)

.gly Glossary (MS Word)

.gmf CGM graphics (APPLAUSE)

.gmp Geomorph tile map (SPX)

.gno Genopro Genealogy Document file

.goc Goc source code file (Geoworks)

.goh Goc header file (Geoworks)

.gp Geode parameter file (Geoworks Glue)

.gp3 CCITT Group 3 file

GuitarPro 3

.gpd VISUAL EPR Input Data for PARAMS.EXE

.gph Graph (Lotus 1-2-3/G)

.gpk Omnigo program package

.gr2 Screen driver (Windows 3.x)

.gra Datafile (SigmaPlot)

.grb Ms-DOS Shell Monitor file (MS-DOS 5)

.grd Gradebook Power file

Map Projection Grid file

.grf Graph file (Graph Plus - Charisma)

.grl Matlab Graphic Format

.grp Group file (Windows 3.x - Papyrus)

Pictures group (PixBase)

.grx File list (GetRight)

.gry Raw GREY graphics

.gs1 Presentation (GraphShow)

.gsd Vector graphics (Professional Draw)

.gsm Raw GSM 6.10 Audio Stream

Sound file

US Robotics modem file

.gsp Geometer's Sketchpad Material file

.gsw Worksheet (GraphShow)

.gtp GuitarPro file

.gts Genome Software Tempo Alarm Clock

.gup Data (PopMail)

.gwi Groupwise File

.gwp Greetings WorkShop file

.gxd General CADD Pro file

GX-Reports file

Jeol EX Spectrometer Data file

.gxl Graphics library (Genus)

.gxt GTA2 Game file

.gym Sega Genesis Music Logged Format

.gz Compressed file archive created by GZIP (GNU zip)

.h Header file

.h! On-line help file (Flambeaux Help! Display Engine)

.h++ Header file (C++)

.h-- Header file (Sphinx C--)

.ha Compressed file archive created by HA (

.ham Image file

.hap Compressed file archive created by HAP (

.hbk Handbook (Mathcad)

.hcr IBM HCD/HCM Production Configuration

.hdf Hierarchical Data File graphics (SDSC Image Tools)

Help file (Help Development Kit)

.hdl Alternate download file listing (Procomm Plus)

.hdp Magix Music/Video

.hdr Pc-File+ Database header

Datafile (Egret)

Message header text (Procomm Plus - 1st Reader)

.hdw Vector graphics (Harvard Draw)

.hdx Help index (AutoCAD - Zortech C++)

.hex Hex dump

.hfi Hp Font Info file (GEM)

.hfx HotFax file

US Robotics Rapid Comm Voice Data file

.hgl Hp Graphics Language graphics

.hh C++ header file

.hhc Table of Contents file

TurboTax Contents file

.hhh Precompiled header file (Power C)

.hhk Help Workshop Index file

.hhp Help information for remote users (Procomm Plus)

.hht MS Messenger file

.hin Molecule (HyperChem)

.his Insight II Dynamics Trajectory History file

Spy-CD CD Search Database file

.hlb Help library (VAX)

.hlp Help information

.hlz Multi-Edit Packed Help file

.hmm Alternate Mail Read option menu (Procomm Plus)

.hnc CNC program files Heidenhain (?) dialog

.hof Hall Of Fame (game scores)

.hp8 Ascii text HP Roman8 character set (NewWave Write)

.hpf Hp LaserJet fonts (PageMaker)

.hpg HPGL plotter file vector graphics (AutoCad - Harvard Graphics)

.hpi Font information file (GEM)

.hpj Help project (MS Help Compiler)

.hpk Compressed file archive created by HPACK (

.hpm Emm text (HP NewWave)

Alternate Main menu for privileged users (Procomm Plus)

.hpp C++ header file (Zortech C++)

.hqx Compressed Macintosh ASCII archive created by BINHEX (

.hrf Graphics (Hitachi Raster Format)

.hrm Alternate Main menu for limited/normal users (Procomm Plus)

.hs2 Monochrome image (Postering)

.hsi Handmade Software Inc. graphics - almost JPEG (Image Alchemy)

.hst History file (Procomm Plus)

.hta Hypertext application

.htc HTML Component (mechanism for implementing Dynamic HTML in script)

.htf WebBase File

.hti WebBase File

.htm HyperText Markup Language document

.htr Motion Analysis Software Skeletal file

.htt Hypertext template

.htx Hypertext file

.hus Husqvarna Designer I Embroidery Machine Format

.hwd Presentation (Hollywood)

.hxm Alternate Protocol Selection menu for all users (Procomm Plus)

.hxx C++ header file

.hy1 Hyphenation algorithms (Ventura Publisher)

.hy2 Hyphenation algorithms (Ventura Publisher)

.hyc Data (WordPerfect)

.hyd Hyphenation dictionary (WordPerfect for Win)

.hyp Compressed file archive created by HYPER (

.i Intermediate file (Borland C++ 4.5)

.iaf MS Outlook 97 and 2000 e-mail account settings

.iax Bitmap graphics (IBM Image Access eXecutive)

.ibm Compressed file archive created by ARCHDOS (Internal IBM only)

.ica Bitmap graphics (Image Object Content Architecture)

.icb Bitmap graphics

.icc Kodak Printer Image

IronCAD Catalog

.icd IronCAD 2D CAD file

.icl icon library (ActivIcons, IconForge, ImageForge, ImageForge PRO)

.icm Image Color Matching Profile file

ICC Profile, Acer Monotor Drive

.icn Icon source code file

.ico Icon (Windows 3.x)

.id Disk identification file

.ide Project (Borland C++ 4.5)

.idf ARTiSAN Real-time Studio ID file

MIDI Instruments Drivers file

.idl MS Visual C++ Interface Definition file

OMG CORBA Interface Definition Language

.idw Vector graphics (IntelliDraw)

.idx Index (many - FoxPro)

.ies Photometric file data

.ifd Form (JetForm Design)

.iff Interchange File Format bitmap graphics/sound (Amiga)

Sun TAAC Image File Format (SDSC Image Tool)

.ifo Saved graphic objects (ImageForge PRO)

.ifp Script (KnowledgeMan)

.ifs Fractal image compressed file (Yuvpak)

.ifs System file (OS/2) hpfs.ifs

.igs IGES-Format

.igx iGrafx Process

.iif QuickBooks for Windows Interchange file

.ilb Data (Scream Tracker)

.ilk Outline of program's format (MS ILink incremental linker)

.im8 Sun raster graphics

.ima Mirage vector graphics (EGO, Chart, Autumn)

.imb IncrediMail file

.imc IncrediMail file

.imf ImageForge/IconForge saved filtered brushes(IconForge, ImageForge, ImageForge PRO)

.img Bitmap graphics (Ventura Publisher - GEM Paint)

.imm IncrediMail Trash

.imn IncrediMail Notifier

.imp Spreadsheet (Lotus Improv)

.imq Image presentation (ImageQ)

.ims Incredimail Graphic

.imv Yahoo Instant Messenger IMVironment

.imw Imageware Surfacer 3D CAD Surface Geometry

IncrediMail Sound

.imz Compressed floppy image

.in$ Installation file (HP NewWave)

.in3 Input device driver (Harvard Graphics 3.0)

.inb Test script (Vermont HighTest)

.inc Include file (several programming languages)

.ind Index (dBASE IV)

.inf Type 1 LaserJet font information file (soft font installers)

Information text file (ASCII)

Install script

.ini Initialization file

.ink Pantone reference fills file (CorelDRAW)

.inl MS Visual C++ Inline Function file

.inp GIS Software Text Input file

Oracle Source Code

Self-Extracting Archive Utility Project

.ins Data (WordPerfect)

Installation script (1st Reader)

Instrument music file (Adlib)

.int Borland Interface Units

Program saved in Internal (semi-compiled) format (Signature)

.inx Index (Foxbase)

.io Compressed file archive created by CPIO

.iob 3d graphics database in TDDD format

.ioc Organizational chart (Instant ORGcharting!)

.ion 4dos descript.ion file (file descriptions)

.ipd InstallPROG 6 EDBS Install Database

.ipg Mindjongg Format

.ipl Pantone Spot reference palette file (CorelDRAW)

.ips Game Patch file

MENSI 3Dipsos

.ipx IPIX AV file

.ipz ICQ Skin Plus

.irs Resource (WordPerfect)

.isd Spelling Checker dictionary (RapidFile)

.ish Compressed file archive created by ISH

.isk Command file

.iso Easy CD Creator Disc Image

File List for CD-ROM

InstallShield Uninstall file

ISO Buster file

ISO-9660 Table


.isr MS Streets & Trips Route file

.iss InstallShield Response file

ISS Graphic

.ist Digitrakker Instrument File (n-FaCToR)

.isu InstallShield Uninstall Script

Easy CD Creator 4 Uninstall file

Netscape file

.it Settings (intalk)

.itf Interface file (JPI TopSpeed Pascal)

.ith InTether technology secured file

.ivt MS Infoviewer Title

.iw Presentation flowchart (IconAuthor - HSC InterActive)

.iwa Text file (IBM Writing Assistant)

.iwp Text file (Wang)

.izt Izl binary token file (IZL)

.jar Java archive file

.jas Graphics

.jav Java source code file

.jbc Jam Byte-Code Hex file

BestCrypt File

.jbd Datafile (SigmaScan)

.jbf Paint Shop Pro browser file

.jbk Juno Backup file

.jbr Jasc Paint Shop Pro Brush

.jbx Project file (Project Scheduler 4)

.jdt Accelio Capture Classic Filler

.jef Janome NH10000 Sewing Machine file

.jet Fax (Hybrid JetFax)

.jff Bitmap graphics (JPEG File Interchange Format)

.jfx J2 Fax File

.jhtml Dynamo Server Page

.jif JPEG/JIFF Image

Jeff's Image Format

.jmx JMeter file

.jnb Sigma Plot Workbook file

.jnl Ingres Journal file

.job Job file

Task Scheduler Task Object

AI Research file

QuestVision Vector Graphics file

.jor Journal file SQL

.jou Journal backup (VAX Edt editor)

.jpc Graphics (Japan PIC)

.jpe JPEG image

.jpg Bitmap graphics (Joint Photography Experts Group)

.jps Stereo Image

.jsd eFAX Jet Suite Document

.jsh Henter-Joyce, Inc. Jaws Script Header file

.jsp Java Server page

.jtf Fax (Hayes JT Fax)

Bitmap graphics (JPEG Tagged Interchange Format)

.jtp Jetform file

.jw Text document (JustWrite)

.jwl Library (JustWrite)

.jwp Easy CD Creator Label file

JWP Document

.jzz Spreatsheet (Jazz)

.kar Midi file with karaoke word track

.kb Keyboard script (Borland C++ 4.5)

Program source (Knowledge Pro)

.kbd Keyboard mapping (LocoScript - Signature - Procomm Plus)

.kbm Keyboard mapping (Reflection 4.0)

.kcl Lisp source code (Kyoto Common Lisp)

.kcp Keychamp file

.kdc Kodak Photo-Enhancer/Photogen file

.kex Macro (KEDIT)

.key Datafile (Forecast Pro)

Keyboard macros

Security file eg. Shareware Registration info

.kit Raven Toolkit file

.kix KixTart Script

.kma Kodak Memory Book file

.kmp Korg Trinity KeyMaP file

.kmx Kaufman Mmail Warrior Mail Folder

.kos MicroType Pro Document

.kpl Kazaa Playlist

KPL Source Code

.kpp Toolpad (SmartPad)

.kps Ibm KIPS bitmap graphics

.kqp Konica Quality Picture

.krz Kurzweil 2000 Sample

.ktk Kutoka's Mia

.kyb Keyboard mapping (FTP Software PC/TCP)

.l Lex source code file

Lisp source code file

Linker directive file (WATCOM wlink)

.l01 ARC Digitized Raster Graphics

.lab Datafile (NCSS - SOLO)

Mailing labels (Q+E for MS Excel)

Mailing labels (Q+E for MS Excel)

.lat Crossword Express Lattice file

.lay Word chart layout (APPLAUSE)

.lbg Label generator data (dBASE IV)

.lbl Label (dBASE IV - Clipper 5 - dBFast)

.lbm Bitmap graphics (DeluxePaint)

Linear bitmap graphics (XLib)

.lbo Compiled label (dBASE IV)

.lbr Compressed file archive created by LU (lue220.arc)

Display driver (Lotus 1-2-3)

.lbt Label memo (FoxPro)

.lbx Label (FoxPro)

.lcf Linker Control File (Norton Guides compiler)

.lck Lockfile (Paradox)

.lcl Data (FTP Software PC/TCP)

.lcn Lection (WordPerfect)

.lcs Datafile (ACT! History Files)

.lcw Spreadsheet (Lucid 3-D)

.ld Long Distance codes file (Telix)

.ld1 Overlay file (dBASE)

.ldb Data (MS Access)

.ldf Library definition file (Geoworks Glue)

.leg Legacy Graphic Format

.les Lesson (check *.cbt)

.let Letter

.lev Level file (NetHack 3.x)

.lex Lexicon (dictionary) (many)

.lfa LifeForm file

.lft Laser printer font (ChiWriter)

.lg Logo procedure definitions (LSRHS Logo)

.lgc Program Use Log file

.lgo Logo for header and footer (SuperFax)

Startup logo code (Windows 3.x)

.lha Compressed file archive created by LHA/LHARC (lha255b.exe)

.lhw Compressed Amiga file archive created by LHWARP

.lib Library file (several programming languages)

.lic License file (Shareware)

.lid WinDVD file

Light Field Description file

Dylan Library Interchange Description

LabelVision Auto Incrementing Value file

Maple V Setup file

Scholar's Aid Backup file

.lif Logical Interchange Format data file (Hewlett-Packard)

Compressed file archive

.lim Compressed file archive created by LIMIT (

.lin Line types (AutoCAD)

.lis Listing (VAX)

.lit MS Reader EBook file

.lix Extend Simulation Library file

Libronix DLS Resource (LLS 2.x Index)

.lj Text file for HP LJ II printer

.lko MS Outlook Express Linked Object

.ll3 Laplink III related file (document) (LapLink III)

.lnd 3D Landscape Data

.lng Diablo II file

NRG SDR Language file

.lnk Linker response file (.RTLink)

.loc MicroSim PCBoard Component Locations Report

Suppose Locations file

.lod Load file

.log Log file

.lok Encrypted and compressed archive format (FileWrangler, SecurDesk!, ZipWrangler)

.lpc Printer driver (TEKO)

.lpd Helix Nuts and Bolts File

Avery Label Pro

.lpf Lytec's Direct Electronic Medical Claims ClaimsDirect

.lpi Live Pictures

.lrf Linker response file (MS C/C++)

.lrs Language Resource File (WordPerfect for Win)

.lsf Streaming Audio/Video file

Libronix DLS Resource

.lsl Lotus Script Library

.lsp Lisp source code file (Xlisp)

.lss Spreadsheet (Legato)

.lst Keyboard macro (1st Reader)

List file (archive index - compiler listfile)

Spool file (Oracle)

.ltm Form (Lotus Forms)

.ltr Letter

.lvp Lucent Voice Player

LView Pro

.lwa LightWorks Archive Material/Scene file

.lwd Text document (LotusWorks)

.lwo NewTek Lightwave Object

.lwp Lotus Wordpro 96/97 File

.lwz MS Linguistically Enhanced Sound file

.lyr DataCAD Layer file

.lzd Difference file for binaries (Ldiff 1.20)

.lzh Compressed file archive created by LHA/LHARC (lha255b.exe)

.lzs Compressed file archive created by LARC (

.lzw Compressed Amiga file archive created by LHWARP

.lzx Compressed file

.m Function (program) (Matlab)

Macro module (Brief)

Standard package (Mathematica)

.m11 Text file (MASS11)

.m2p MPEG-2 Program Stream Format file

.m2v MPEG-2 Video Only file

.m3 Modula 3 source code file

.m3d 3d animation macro

.m3u Music Playlist (Winamp)

.m4 M4 preprocessor file (unix)

.m_u Backup of boot sector, FAT and boot dir (MazeGold)

.ma3 Macro (Harvard Graphics 3.0)

.mac Bitmap graphics (Macintosh MacPaint)


.mad MS Access Module Shortcut

.mag Woody Lynn's MAG graphics format (MPS Magro Paint System)

.mai Mail (VAX)

.mak Makefile

Project file (Visual Basic)

.man Command manual

.map Color palette

Format data (Micrografx Picture Publisher)

Linker map file

Map (Atlas MapMaker)

Network map (AccView)

.mar Assembly program (VAX Macro)

.mas Smartmaster set (Freelance Graphics)

.mat Data file (Matlab)

.max Max source code file

Microsoft Data Analyser View

.mb Memo field values for database (Paradox)

.mbf MS Money Backup file

.mbk Multiple index file backup (dBASE IV)

.mbx Mailbox (Eudora/Zerberus)

.mcc Configuration file (Mathcad)

.mcd Document (Mathcad)

.mcf Mathcad font

Meta Content Format file

Master Command file

TMPGEnc template

.mci Mci command script (Media Control Interface)

.mcp Application script (Capsule)

Printer driver (Mathcad)

.mcr DataCAD Keyboard macro file

.mcw Text file (MacWrite II)

.mcx Graphic file

.md Compressed file archive created by MDCD (mdcd10.arc)

.md5 Message Digest 5 (Easy MD5 Creator)

.mda Data (MS Access)

.mdb Database (MS Access)

.mdf Accelio Capture Classic (JetForm) Filler

I-deas Master Drafting Machine Data file

Menu Definition file

MS-SQL Master Database file

.mdl Model (3D Design Plus)

Spreadsheet (CA-Compete!)

.mdm Modem definition (TELIX)

.mdr FaxTalk Modem Doctor Modem Report file

.mdt Data table (MS ILink incremental linker)

.mdx Multiple index file (dBASE IV)

.mdz MS Access Wizard Template

.me Usually ASCII text file READ.ME

.meb Macro Editor bottom overflow file (WordPerfect Library)

.med Macro Editor delete save (WordPerfect Library)

Music (OctaMED)

.mem Macro Editor macro (WordPerfect Library)

Memory variable save file (Clipper - dBASE IV - FoxPro)

.meq Macro Editor print queue file (WordPerfect Library)

.mer Macro Editor resident area (WordPerfect Library) (vakioalue)

.mes Macro Editor work space file (WordPerfect Library)


.met Macro Editor top overflow file (WordPerfect Library)

Document (Omnipage Pro)

.meu Menu group (DOS Shell)

.mex Mex file (executable command) (Matlab)

Macro Editor expound file (WordPerfect Library)

Mioplanet mex reader interactive file

.mf Metafont text file

.mgf Font (Micrografx)

.mhp MS Home Publishing Project

.mht MS MHTML Document

.mib Snmp MIB file

.mic Microsoft Image Composer file

.mid Standard MIDI file (music synthetizers)

.mif Maker Interchange Format (FrameMaker)

.mii Datafile (MicroStat-II)

.mim MIME file

.mio Multimedia Interactive Object

.mip Paint Shop Pro Multiple Image Print file

.mis Delta Force Land Warrior Mission

MagicInstall Installation Script

Tribes 2 Game file

.mix Object file (Power C)

.mk Makefile

.mke Makefile (MS Windows SDK)

.mki Japanese graphics MAKIchan format (MagView 0.5)

.mks Data (TACT)

.ml3 Project (Milestones 3.x)

.mlb Macro library file (Symphony)

.mlm Novel Groupwise e-mail file

.mm Text file (MultiMate Advantage II)

.mmc Media Catalog

MSoffice Media Content

.mmf Mail message file (MS Mail)

.mml Mail Meta Language

.mmm Movie (RIFF RMMP format) (MacroMind Director 3.x)

.mmo Memo writer file (RapidFile)

.mmp Output video format from Bravado board

.mmx Command & Conquer Red Alert 2 Map file

Oracle Forms Compiled Menu

.mmz MusicMatch Theme file

.mnd Menu source (AutoCAD Menu Compiler)

.mng Map (DeLorme Map'n'Go)

.mnt Menu memo (FoxPro)

.mnu Advanced macro (HP NewWave)

Menu (AutoCAD Menu Compiler - Norton Commander - Signature)

.mnx Compiled menu (AutoCAD)

Menu (FoxPro)

.mny Account book (MS Money)

.mob Device definition (PEN Windows)

.mod Modula-2 source code file (Clarion Modula-2)

Windows kernel module

Music (FastTracker - many)

.mol MDL Molfile

.mon Monitor description (ReadMail)

.mov QuickTime Video Clip

Apple QuickTime Audio

AutoCAD AutoFlix Movie

.mp2 Mpeg audio file (xing)

.mpc Calender file (MS Project)

.mpd MS Project database file

.mpe MPEG Movie Clip

.mpf MS Design Gallery

MosASCII Project Workspace file

.mpg Mpeg animation

.mpm Mathplan macro (WordPerfect Library)

.mpp Project file (MS Project)

CAD Drawing File

.mpq Blizzard Game Data file

.mpr Generated program (FoxPro)

.mps Multimedia file

Casio PDL Pocket Streets Map

.mpt Bitmap graphics (Multipage TIFF)

Template File (MS Project)

.mpv View file (MS Project)

.mpw MosASCII Project Workspace file

.mpx Compiled menu program (FoxPro)

.mrb Multiple Resolution Bitmap graphics (MS C/C++)

.mrc MIRC Script file

Bibliographic Data Format

.mrk Informative Graphics markup file

.mrs Macro Resource file (WordPerfect for Win)

.msc MS C makefile

.msf Multiple Sequence file

.msg Message

.msi Windows Installer file

.mso Math Script Object file

MS FrontPage file

MS Word OLE Web Page Storage Stream

.msp Bitmap graphics (Microsoft Paint)

.mss Manuscript text file (Perfect Writer - Scribble - MINCE - Jove)

.mst ChemFinder Chemical Structure Index

DATAIR Pension System Master file

Minispecification file (Prosa)

Setup script (MS Windows SDK)

Visual Test Source file

.msv Sony Memory Stick Format

.msw Text file (MS Word)

.msx Compressed CP/M file archive created by MSX

.mtd Digital Sheet Music

.mth Math file (Derive)

.mtm Multitracker Module music

.mts Viewpoint iPix file

.mtw Datafile (Minitab)

.mtx Temporary File often used by a browser or TWAIN device

Viewpoint iPix file

.mu Menu (Quattro Pro)

.mu3 Myriad Music file (packed sounds & digital tracks)

.muf ProtoMuck Multi User Forth Program

.mul Ultima Online Game

.mus MusicTime Sound file

Myriad Music file

.mvb Database

MS Multimedia viewer file

.mvc Music Collector Collection Manager file

.mvf Stop frame file (AutoCAD AutoFlix)

.mvi Movie command file (AutoCAD AutoFlix)

.mvw Log file (Saber LAN)

.mwf Animation (ProMotion)

.mwv MovieWorks file

.mxd GIS Project file

.mxe Macro Express

Mindex Effect Album

.mxm MS Project/Outlook Team Assign Task

.mxp Macromedia Extension Manager

ArcReader Published Map

.mxt Data (MS C)

.myp Presentation (MM Make Your Point)

.myr Myriad Music file

.mys Myst Saved Game

.myt Myriad Tutorial file

.na2 Netscape Mail file

.nam MS Office Name file

.nap Naplps file (VideoShow) (EnerGraphics)

.nav MSN Application Extension

.nb Text file (Nota Bene)

.nc Graphics (netcdf)

Instructions for NC (Numerical Control) machine (CAMS)

.ncb MS Developer Studio file

.ncc Cnc (Computer Numeric Control) control file (CamView 3D)

.ncd CoverDesigner

Norton Change Directory support file (Norton Commander)

NTI CD-Maker file

.ncf Lotus Notes Internal Clipboard

Netware Command file

.nch Outlook Express folder file

On Hold message/music file

.ndb Network database (Intellicom - Compex)

.ndx Index file (dBASE II - III - IV - dBFast)

.neb Nortec H.E.L.P.

.ned MSN Application Extension

.neo Raster graphics (Atari Neochrome)

.nes Nintendo Entertainment System ROM Image

.net Network configuration/info file

.new New info

.nfo Info file

.ng Online documentation database (Norton Guide)

.ngf Enterasys Networks NetSight generated format file

.ngg Nokia Group Graphics

.nif NetImmerse File Format

.nlm Netware Loadable Module

.nls Code Page National Language Support

.nlx Form (FormWorx 3.0)

.nmd SwordSearcher file

.nmi SwordSearcher file

.nmo Virtools Behavioral Objects

.nms Numega Softice's Loader file

Virtools Graphical Scripts

.nnb newnovelist Story Outline

.nob VersaPro Word Exchange file

.nol Nokia Operator Logo

.not Acrobat Spelling file

ActiveNote Post-It-Notes

.now Text file

.np Project schedule (Nokia Planner) (Visual Planner 3.x)

.npa ReliaSoft Weibull++ 6

.npi Source for DGEN.EXE intepreter (dBASE Application Generator)

.nra Nero Audio-CD Compilation

.nrb Nero CD-ROM Boot Compilation

.nrg Norton Registration Entries

Nero CD-Image

IsoBuster file

.nri Nero ISO CD-ROM compilation

.nrl iManage file

.nsc Noder file (Polish)

Windows Media Station file

.nsf Lotus Notes / Domino database

.nsi Nullsoft Install System Script

.nst Music (NoiseTracker)

.nt Startup files (Windows NT)

.ntf Lotus Notes / Domino template file

.ntp Neato CD Labels

.ntr Executable ASCII text file (strip header and rename) (

.nts Tutorial (Norton)

Executable ASCII text file (strip header and rename) (

.ntx Index (Clipper 5)

.ntz InVircible Directory Integrity Information

.nuf Message for new users on their 1st call (Procomm Plus)

.nwc Noteworthy Composer song file

.nws Info text file (latest news) (ASCII)

.nxt Sound (NeXT format)

.o Object file (unix - Atari - GCC)

.o$$ Outfile (Sprint)

.oaz Fax (NetFax Manager)

.ob Object cut/paste file (IBM LinkWay)

.obd MS Office Binder

.obj Object code (Intel Recolatable Object Module)

.obr Object browser data file (Borland C++)

.obs Script (ObjectScript)

.obv Visual interface (ObjectScript)

.oca Control Typelib Cache

.ocf Object Craft File (Object Craft)

.ocm AOL Advertising Control files

Internet Odyssey 2 Update

.ocp Advanced Art Studio

Offline Commander Project file

.ocr Incoming fax transcribed to text (FAXGrapper)

.oct Radiance Octree Format

.ocx OLE custom control

.odf Open Document Interchange

BattleZone Cartographers Guild file

Star Trek Armada Ship/Structure Infomation

.odl Type library source (Visual C++)

.oeb Outlook Express Backup Wizard

.ofc Open Financial Connectivity file

.ofd Form definition (ObjectView)

.off Object File Format vector graphics

.ofm Adobe font

.oft MS Outlook Item Template

.ofx Olicom Fax

Open Financial Exchange file

.ogg Ogg Vorbis Codec Compressed WAV file

.ogm Ogg Vorbis Compressed Video file

.okt Music (Oktalizer)

.olb Object library (VAX)

.old Backup file

.oli Text file (Olivetti)

.omg OpenMG Jukebox

.oms Briggs Softworks Order Maven

Macintosh MP3 Music Format

Omega Downloader Configuration file

.ond Lotus Notes-related file

.oom Swap file (Shroom)

.opd Omnipage file

.opf Flip Album file

.opl Psion Organiser Programming Language Source file

.opn Active options (Exact)

.opt Optimize support file (QEMM)

.opw Organization chart (Org Plus for Windows)

.opx Inactive options (Exact)

.or2 Lotus Organizer 2 file

.or3 Lotus Organizer 97 file

.or4 Lotus Organizer file

.or5 Lotus Organizer file

.ora Parameter file (Oracle)

.org Calendar file (Lotus Organizer)

.osd Open Software Description file

.oss MS Office Saved Search

.ost Microsoft Outlook Offline file

.otf Open Type Format

.otl Outline font description (Z-Soft Type Foundry)

.otx Text file (Olivetti Olitext Plus)

.out Output file

.ov1 Overlay file (part of program to be loaded when needed)

.ov2 Overlay file (part of program to be loaded when needed)

.ovd Datafile (ObjectVision)

.ovl Overlay file (part of program to be loaded when needed)

.ovr Overlay file (part of program to be loaded when needed)

.ovw Cool Edit Pro Overviewfile

Cubase .WAV File Image

DIANA Overview file

.ows Web Studio 2 Project file

.p Pascal source code file

Rea-C-Time application parameter file (ReaGeniX code generator)

Picture file (APPLAUSE)

.p16 Music (16 channels) (ProTracker Studio 16)

.p22 Patch file (Patch22)

.p65 Adobe Pagemaker v6.5

.p7m PKCS #7 MIME Message

.pa Print Artist

.pa1 Worktable (PageAhead)

.pab Microsoft Outlook personal address book

.pac Stad Image (graphics ?)

Package (SBStudio II)

.pad Keypad definition (Telemate)

.paf PARIS audio format

Personal Ancestral file

.pak Compressed file archive created by PAK (pak251.exe)

.pal Adobe Pagemaker Library Palette

Color Palette

Compressed File

Tree Professional Palm Creator file

.pan Printer-specific file (copy to (CorelDRAW)

.par Parts application (Digitalk PARTS)

Parameter file (Fractint)

Permanent output file (Windows 3.x)

.pas Pascal source code file

.pat Hatch patterns (AutoCAD - Photostyler)

.pat Vector fill files (CorelDRAW)

.pb Fax (FAXability Plus)

Phonebook (WinFax Pro)

Setup file (PixBase)

.pb1 Document (First Publisher for Windows)

.pba Powerbasic BASIC source code (Genus)

.pbd Phone book (FaxNOW! - Faxit)

.pbf Turtle Beach Pinnacle Bank file

Grand Prix Legends BMAP file

PBook E-book Format (renamed ZIP file)

Portable Bitmap Format file

.pbi Powerbasic include file (Genus)

Profiler Binary Input (MS Source Profiler)

.pbl Powerbasic library (Genus)

.pbm Pbm Portable Bit Map graphics

Planar bitmap graphics (XLib)

.pbo Profiler Binary Output (MS Source Profiler)

.pbt Profiler Binary Table (MS Source Profiler)

.pc Text file containing IBM PC specific info

.pc3 Custom palette (Harvard Graphics 3.0)

.pc8 Ascii text IBM8 character set (NewWave Write)

.pcb Broderbund Print Shop Business Card

Ivex Winboard Design file

MS PowerPoint Application Data file

Protel Technology Advanced PCB Design

.pcc Cutout picture vector graphics (PC Paintbrush)

.pcd Graphics (Kodak PhotoCD)

.pcf Profiler Command File (MS Source Profiler)

.pch Patch file

Precompiled header (MS C/C++)

.pcj Multimedia authoring tool graphics (IBM's Linkaway-Live)

.pck Pickfile (Turbo Pascal)

.pcl HP-PCL graphics data (HP Printer Control Language)

.pcm Plasmacam CAD/CAM system file

.pcs PICS Animation

.pct Bitmap Graphic

Honeywell GUS Display Builder

Macintosh Quickdraw/PICT Drawing


.pcw Text file (PC Write)

.pcx Bitmap graphics (PC Paintbrush)

.pda Bitmap graphics

.pdb Data (TACT)

.pdd Adobe PhotoDeluxe Image

.pdf Adobe Portable Document Format

Package Definition File

Graphics file (ED-SCAN 24bit format)

.pdg Printshop Deluxe files

.pdl Project Description Language file (Borland C++ 4.5)

.pdr Port or printer driver

.pds Incredimail

Source Code File

Telsis HiCall Program File

Pds graphics

Planetary Data System

Pldasm source code file (hardware assembly)

Print Shop Graphic

.pdt ProCite Primary Database

VersaPro Compiled Block

.pdv Printer driver (Paintbrush)

.pdw Document (Professional Draw)

.pe4 Photo Explorer Thumbnail

.peb Program Editor bottom overflow file (WordPerfect Library)

.ped Program Editor delete save (WordPerfect Library)

.pem Program Editor macro (WordPerfect Library)

.peq Program Editor print queue file (WordPerfect Library)

.per Program Editor resident area (WordPerfect Library) (vakioalue)

.pes Program Editor work space file (WordPerfect Library)

.pet Program Editor top overflow file (WordPerfect Library)

.pf Monitor/printer profile file

.pfa Type 3 font file (unhinted PostScript font)

.pfb Type 1 font file

.pfc Text file (First Choice)

.pfg jEEPers file

.pfk Programmable function keys (XTreePro)

.pfm Windows Type 1 font metric file

.pfs Database (PFS:FILE) - text file (PFS:Write)

.pft Printer font (ChiWriter)

.pg Page cut/paste file (IBM LinkWay)

.pgi Printer Graphics File device driver (PGRAPH library)

.pgm Portable Grayscale bitMap graphics

Program (Signature)

.pgp Support file (Pretty Good Privacy RSA System)

.pgs Manual page (man4dos)

.ph Optimized .goh file (Geoworks)

Perl header file

Phrase-table (MS C/C++)

.phb NewLeaf PhraseBook

ClustaW Tree file

TreeView file

PhoneB Phonebook file

.phn Phone list (UltraFax - QmodemPro)

.pho Phone database (Metz Phone for Windows)

.php MS Picture It! Publishing Project File


PHP Script

.phr Phrases (LocoScript)

.pic Pixar picture file (SDSC Image Tool)

Bitmap graphics (Macintosh b&w PICT1 - color PICT2)

Bitmap graphics (many eg. Lotus 1-2-3 - PC Paint)

.pif Program Information File (Windows 3.x)

Vector graphics GDF format (IBM mainframe computers)

.pip Personalized menu and toolbar (MS Office)

.pit Compressed Mac file archive created by PACKIT (unpackit.zoo)

.pix Alias image file (SDSC Image Tool)

.pj Project (CA-SuperProject)

.pjt Project memo (FoxPro)

.pjx Project (FoxPro)

.pk Packed bitmap font bitmap file (TeX DVI drivers)

.pk3 American McGee Alice Archive

Return to Castle Wolfenstein file

Heavy Metal: F.A.K.K.2 Archive

Quake 3 Arena Archive (renamed zip file)

.pka Compressed file archive created by PKARC

.pkd Top Secret Crypto Gold file

.pkg Installer script (Next)

.pkt Fidonet packet

.pl Perl source code file

Prolog source code file

Property List font metric file (TeX)

Palette (Harvard Graphics)

.pl1 Room plan (3D Home Architect)

.pl3 Chart palette (Harvard Graphics 3.0)

.plb Library (FoxPro)

.plc Add-in file (functions - macros - applications) (Lotus 1-2-3)

.pll Pre-linked library (Clipper 5)

.pln Spreadsheet (WordPerfect for Win)

.plr Descent Pilot file

Player file

.pls DisorderTracker2 Sample

WinAmp MPEG PlayList file

Shoutcast file

MYOB Data file

.plt AutoCAD HPGL Vector Graphic Plotter file

Bentley's CAD MicroStation Driver Configuration for Plotting

Clipper 5 Pre-linked Transfer file

Gerber Sign-making Software file

HP Graphics Language

Infinity Game Engine Bitmap Graphic

Lotus Organiser Paper Layout Definition


X-wing vs. Tie Fighter Pilot file

.ply Data (PopMail)

Presentation screen (Harvard Spotlight)

.pm Bitmap graphics (Presentation Manager)

.pm3 Document (PageMaker 3)

.pm4 Document (PageMaker 4)

.pm5 Document (PageMaker 5)

.pm6 Document (Pagemaker 6)

.pmc Graphics (A4TECH Scanner)

.pmd Pagemaker file

.pme Plazmic Media Engine file

.pmf ArcReader GIS Mapping file

.pmm Program file (Amaris BTX/2)

.pmo Print Master Gold Text

.pmx Pegasus Mail file

.pn3 Printer device driver (Harvard Graphics 3.0)

.pnf Precompiled Setup Information (Temporary file seen during installs)

.png Bitmap graphics (Portable Network Graphics)

.pnm Pbm Portable aNy Map (PNM) graphics

.pnt Macintosh painting

Qwk reader pointer file (MarkMail 2.x)

.poh Optimized .goh file (Geoworks)

.pop Messages index (PopMail)

Pop-up menu object (dBASE Application Generator)

.pos ProCite Output Styles

QuickPOS IIF file

.pot PowerPoint template

.pov Raytraced scene description file (Persistence Of Vision)

.pow Chord chart (PowerChords)

.pp Compressed Amiga file archive created by POWERPACKER

.ppa PowerPoint Add-in

.ppb Button bar for Print Preview (WordPerfect for Win)

.ppd PostScript Printer Description (Acrobat)

.ppf Turtle Beach Pinnacle Program file

Jasc Paint Shop Pro 7 Preset file

Micrografx Picture Publisher file

PlayStation Patch file

.ppg MS PowerPoint Ppresentation

Professor Franklin's Photo Print Gold

.ppl Polaroidpaletteplus ColorKey device driver (Harvard Graphics 3.0)

.ppm Portable Pixel Map graphics

.ppo Pre-processor output (Clipper 5)

.ppp Publication (PagePlus)

.pps PowerPoint Slideshow

Storyboard (Personal Producer)

.ppt General file extension (PowerPoint)

.ppz PowerPoint Packaged Presentation

.pqa Palm Query Application File (database for wireless access)

.pqi Power Quest Drive imaging

.pr2 Presentation (Aldus Persuasion 2.x)

.pr2 Printer driver (dBASE IV)

.pr3 Postscript printer driver (dBASE IV)

.pr3 Presentation (Aldus Persuasion 3.x)

.prc Palmpilot resource file

Picture Gear Pocket

.prd Printer driver (many)

.pre Presentation (Freelance Graphics)

Settings (Programmer's WorkBench - MS C/C++)

.prf Pixel Run Format graphics (Improces - Fastgraph)

Printer driver (dBASE IV)

Profiler output

.prg Program (Atari)

Program source (dBASE IV - FoxPro - Clipper 5 - dBFast)

.pri Printer definitions (LocoScript)

.prj Project

.prm Parameters

.prn DataCAD Windows Printer file

HP Printer Control Language

PostScript file

Printer Text file

XYWrite Printer Driver

.pro Prolog source code file

Graphics profile file (DOS)

.prs Printer Resource eg. fonts (WordPerfect for Win)

Presentation (Harvard Graphics Win)

Procedure (dBASE IV)

.prt CADKEY Part file

Printer Configuration

Printer driver (Dr.Halo)

Printer-formatted file

Pro/ENGINEER Model file

Process Revolution Template file

SCEdit Part file

Unigraphics Part file

.prx Compiled program (FoxPro)

.prz Freelance Graphics 97 file

.ps Postscript file (text/graphics) (ASCII)

.psb Pinnacle Sound Bank

Project Scheduler Configuration file

.psd Graphics (Photoshop 3.0)

.pse Bitmap graphics (IBM printer Page SEgment)

.psf Outline PostScript printer font (ChiWriter)

PrintShop Mail Favorites

.psi PSION A-law Audio

.psm Music (MASI - ProTracker)

PrintShop Mail

Symbol table of IDE (Turbo Pascal)

.psmdoc PrintShop Mail

.psp PaintShop Pro Image

Procedure (Prodea Synergy)

Project Scheduler Planning file

.psr Project Scheduler Resource file

.pst MS Outlook personal folder

.psw WinXP Backup Password File

.pt3 Device driver (Harvard Graphics 3.0)

Template (PageMaker 3)

.pt4 Template (PageMaker 4)

.ptb Script (PubTech BatchWorks)

.ptm Macro (PubTech BatchWorks)

.ptn PaperPort Thumbnail Images

.ptp Act! Modem Sync file

.ptr Qwk reader pointer file (QMail)

.pts Infinity Engine Game Tileset

Halflife Map Creation Debug file

.ptx Real Legal E-Transcript

.pub Page template (MS Publisher)

Public key ring file (Pretty Good Privacy RSA System)

Publication (Ventura Publisher - 1st Publisher)

.put Compressed file archive created by PUT (

.puz Across Lite Crossword Puzzle

Packed MS Publisher file

.pva Hauppauge DVB-Software

.pvd Script (Instalit)

.pvl Library (Instalit)

.pvt Local Fidonet pointlist

.pw Text file (Professional Write)

.pwd Pocket Word document

AutoCAD Password file

.pwl Password List

.pwp Text document (Professional WritePlus)

.pwz MS Powerpoint Wizard

.px Primary database index (Paradox)

.pxl Pocket Excel Spreadsheet

.py Python script file

.pyc Compiled PYTHON script file

.pyd Binary Python Extension on Windows

.pyw Python GUI Script on Windows

.pz2 Curious Labs Poser Pose file

.pz3 Curious Labs Poser Document

.pza MGI PhotoSuite II/III/4 Album file

.pzd Default settings (Pizazz Plus)

.pzl Jigs@w Puzzle

Lode Runner Game Puzzle


.pzo Overlay file (Pizazz Plus)

.pzp MGI PhotoSuite II/III/4 Project file

Palette (Pizazz Plus)

.pzs Settings (Pizazz Plus)

.pzt Transfer file (Pizazz Plus)

.pzx Swap file (Pizazz Plus)

.q9q BladePro Graphic Plugin file

.qad QuickArt database

.qag Quick Access Group (Norton Desktop)

.qap Application (Omnis Quartz)

.qbb QuickBooks for Windows Backup file

.qbe Saved query (Query By Example) (dBASE IV - Quattro Pro)

.qbl Business Lawyer Document

.qbo Compiled query (dBASE IV)

.qbr QuickBooks Report

.qbw Spreadsheet (QuickBooks for Windows)

.qcn Qualcomm Phonebook file

.qcp Qualcomm PureVoice File

.qd0 Data file - segment 10 (Omnis Quartz)

.qd1 Data file - segment 1 (Omnis Quartz)

.qd2 Data file - segment 2 (Omnis Quartz)

.qd3 Data file - segment 3 (Omnis Quartz)

.qd4 Data file - segment 4 (Omnis Quartz)

.qd5 Data file - segment 5 (Omnis Quartz)

.qd6 Data file - segment 6 (Omnis Quartz)

.qd7 Data file - segment 7 (Omnis Quartz)

.qd8 Data file - segment 8 (Omnis Quartz)

.qd9 Data file - segment 9 (Omnis Quartz)

.qdat Quicktime Installer Cache

.qdb Quicken data file

.qdf Quicken for Windows data file

.qdk Backup of startup files created by Optimize (QEMM)

.qdt Quark Xpress Dictionary file

Question Mark Designer Test file

QuickBooks UK Accountancy Data file

Quicken Data file

.qdv Graphics (Steve Blackstock Giffer)

.qe4 Kingpin Project file

.qef Query file (Q+E for MS Excel)

.qel Quicken Electronic Library file

.qfl Quicken Family Lawyer file

.qfx Fax (QuickLink)

.qic Backup set for Microsoft Backup

.qif Quicken Interchange Format

Quicktime Image

.qix NovaStar Backup file

Quicken for DOS v.2 data file

.qlb Quick library (MS C/C++)

.qlc Data (PostScript help file) atmfonts.qlc

.qlf Family Tree Maker Genealogy file

.qlp Printer driver (QuickLink)

.qm4 Options or services file (QMail 4.x Mail Door)

.qpr Generated query program (FoxPro)

Print queue device driver (OS/2)

.qpw Quattro Pro Project file

.qpx Compiled query program (FoxPro)

.qrp Centura Report Builder file

Liberty for Windows report file

.qrs Equation Editor support file (WordPerfect for Win)

.qrt Qrt ray tracing graphics

.qry Query (dBASE IV)

.qsd Quicken for Windows data file

.qst Quake Spy Tab file

.qt Quicktime movie (animation)

.qtc Incite Media Assistant file

.qtk Apple QuickTake file format for Windows

.qtp QuickTime Preferences

Astra Quicktest Report

.qts Macintosh PICT image

QuickTime image

.qtx QuickTime image

.que CuteFTP Queue file

Task Scheduler Queue Object

.qvm Quake file

.qvs Casio Digital Camera file

.qwk Qwk reader message file

.qxd Document (QuarkXPress)

.qxl Element library (QuarkXPress)

.qxt Template file (QuarkXpress)

.r Ratfor (FORTRAN preprosessor) file

.r33 Train Simulator Game file

.r8 Raw graphics (one byte per pixel) plane one (PicLab)

.r8p Pcl 4 bitmap font file (Intellifont)

.ra Music (RealAudio)

.ram Ramfile (RealAudio)

.rar Compressed file archive created by RAR (rar1_402.exe)

.ras Sun Rasterfile graphics

.rat Datafile (RATS)

.raw Raw RGB 24-bit graphics

.rbf Datafile (Rbase)

.rbn Richard's Bridge Notation

Real Sound file

.rc Resource script (MS C/C++ - Borland C++)

Configuration (emacs)

.rcg Netscape newsgroup file (netsc.rcg)

.rcp Recomposer's MIDI Sequencer Music file

.rcx Lego Mindstorms Robotics Invention System

.rdb TrueVector Rules database

ZoneAlarm Rules database

.rdf Compiled UIC source code (Geoworks UI Compiler)

.rdi Device-independent bitmap file (RIFF RDIB format)

.rds Ray Dream Studio file

.rdx Datafile (Reflex)

.rec Datafile (EpiInfo)

Record file (Sprint)

Recorded macro file (Windows 3.x)

.red Path info (Clarion Modula-2)

.ref Cross-reference

.reg Ole Registration (Windows 3.x)

Registration (Corel programs)

.rem Remarks

.rep Qwk reader reply file

Report (Report Designer - CodeReporter - DataBoss)

.req Request

.res Compiled resource (MS C/C++ - Borland C++)

Dbase resources (dBASE IV)

.rev Revision file (Geoworks)

.rex Rexx source code file

Report definition (Oracle)

.rez Resource file

.rf Sun raster graphics

.rft Dca/RFT Revisable Format Text file (IBM DisplayWrite 4.0-5.1)

.rgb Sgi RGB image file (SDSC Image Tool)

.rgi RealArcade Game Installer

.rgp RealArcade Game Package

.rgs RealArcade Game Installer

.rgx Symbol tables etc. info (ReaGeniX code generator)

.rh Resource header file (Borland C++ 4.5)

.ri Data (Lotus 1-2-3)

.rib Graphics in Renderman format (3DReality)

.ric Fax (Ricoh)

.rif Riff bitmap graphics (Fractal Design Painter)

.rip Graphics (Remote Access)

.rix Bitmap graphics (ColorRIX VGA Paint)

.rl4 Bitmap graphics

.rl8 Bitmap graphics

.rla Wavefront raster image file (SDSC Image Tool)

.rlb Data (Harvard Graphics Win) hgw.rlb

.rlc Graphics 1bit/pixel scanner output

.rle Utah Run Length Encoded raster graphic (SDSC Image Tool)

.rlz Realizer source code file (CA-Realizer)

.rmf Rich Map Format

.rmi Midi file (RIFF RMID format)

.rmj Real Jukebox file

.rmk Makefile (Clipper RMake)

.rmm RealPlayer file

.rmr Resume Maker file

.rmx RealJukeBox MP3 file

.rn Xpl program for Nota Bene users

.rnd Rendering Slide (AutoCAD AutoShade)

.rno Runoff file (VAX)

.rol Fm music Adlib Music File (Roland)

.rpd Database (RapidFile)

RosaPro file

RPV Printing System file

.rpl Text document (Replica)

.rpm RedHat Package Manager

RealMedia Player file

RunPaint Multicolor Graphic

.rps Propellerhead Software Reason Song

.rpt Report

.rrd ERDAS Imagine file

.rs Data file (Amiga Resource - Reassembler)

.rs_ Resource fork of a Macintosh file (Mac-ette)

.rsb Red Storm Image Format

.rsc Resource file

.rsm ReliaSoft MPC 3

RuneSword II Game

WinWay Deluxe Resume file

.rsp Response file

.rss ReliaSoft BlockSim

Rockwell Logix PLC file

.rst ANSYS Results

ReliaSoft BlockSim

.rsw ReliaSoft BlockSim

.rtf Rich Text Format text file (many - Windows Word)

Windows Help file script

.rtl Run Time Library (NU 7.0)

Text file

.rtp Rtpatch software update package data file

.rts Runtime library file (CA-Realizer)

.rtx Reliacast Audience Manager Turnstile

Mobile Phone Ringtone

.rul InstallShield

.rvp MS Scan Configuration file

.rvw Review

.rws Resource Workshop data file (Borland C++)

.rwx Script (RenderWare)

.rwz MS Outlook Rules Wizard file

.rzr in-sync Speed Razor Project file

.rzx in-sync Speed Razor Project file

.s Assembly source code file (unix)

Scheme source code file

.s$$ Temporary sort file (Sprint)

.s3m Music (16 channels) (Scream Tracker 3.0)

.sac Shared Asset Catalog (Adobe)

.saf MusicMatch Jukebox Secure Audio file

Safe File Encryption (Helix Software)

Twelve Ghosts file

.sah SETI@Home data file

.sal Datafile (SORITEC)

.sam Text file (Samna - Lotus Ami/Ami Pro)

.sar Compressed file archive created by SAR (

.sav Backup file (saved file)


Saved game situation (eg. NetHack)

.sb Audio file (signed byte)

.sbc Sagebrush Corporation Spectrum CIRC/CAT Report

.sbd Storyboard (Storyboard Editor)

.sbi Sound Blaster Instrument file (Creative Labs)

.sbp Dml program (Superbase 4)

.sbr Support file (Source Browser)

.sbs SWAT HRU Output file

.sbt Notes related to record (Suberbase 4 Windows)

.sc Pal script (Paradox)

Display driver (Framework II)

.sc3 Renamed dBASE III screen mask file (dBASE IV)

Screen device driver (Harvard Graphics 3.0)

.sca Datafile (SCA)

.scc Text file

.scd Scodl Scan Conversion Object Description Language graphics

.scf Multimedia show (ScoreMaker)

Spelling checker configuration (Symphony)

.sch Project schedule (Schedule Publisher)

Schematics file (ORCAD)

.sci System Configuration Information

Fax (SciFax)

.scm Scheme source code file

.scn Screen file (Kermit)

.sco High score

.scp Script (BITCOM)

.scr Debug source code file (DOS Debug)

Screen - screen snapshot (dBASE IV - Procomm Plus)

Screen font (LocoScript)

Screen saver (Windows 3.x)

Script (Kermit - 1st Reader)

.sct Screen memo (FoxPro)

.scx Bitmap graphics (ColorRIX)

Chart (Stanford Chart)

Screen (FoxPro)

.scy Security file (ReaGeniX)

.sda Fidonet's Software Distribution Network file archive description

.sdc StarOffice Spreadsheet

.sdd StarOffice Presentation

.sdf System Data Format file (fixed lenght ASCII text)

.sdi Software Distribution Network Info file

.sdn Software Distribution Network compressd file archive (pak251.exe)

.sdr SmartDraw file

.sdt SmartDraw Template

Dungeon Keeper 2 Archive

Theme Park World Archive

.sdu Edwards Systems Technology file

.sdw StarOffice Text

Raw Signed DWord Data

Lotus WordPro Graphic

.sea Self-Extracting compressed Macintosh file Archive

.sec Secret key ring file (Pretty Good Privacy RSA System)

Secured animation file (Disney Animation Studio)

.sep Printer separator page

.seq Atari animation file

Sequential Instruction File (Bubble Chamber)

.ses Session info (Clarion Modula-2)

.set Configuration (1st Reader)

Driver sets created by Install (Symphony)

Setup options file

.sf Ircam Sound File (CSound package - MixView sound sample editor)

Wps attribute storage (OS/2 WorkPlace Shell) wp_root.sf

.sff Fritz Fax-Print file

Stage Scene file

Structured Fax Format

.sfi Graphics (SIS Framegrabber)

Printer font (HP LaserJet landscape) (Ventura Publisher)

.sfl Pcl 4 bitmap font (landscape) (Intellifont) (Ventura Publisher)

.sfn Font (SPX)

.sfp Pcl 4 bitmap font (portrait) (Intellifont) (Ventura Publisher)

.sfs Pcl 5 scalable font file (Intellifont)

.sft Screen font (ChiWriter)

.sfv QuickSFV/WinSFV Checksum file

Simple File Verification (Easy SFV Creator)

.sfw Seattle Film Works file

.sg1 Graphics (Stanford Graphics)

.sgf Document with graphics (Starwriter)

Smart Game Format

Sonique Skin

.sgi Graphics (IRIS - Silicon Graphics)

.sgn Sierra Print Artist Sign

.sgp Statistics (STATGRAPHICS Plus)

.sgt Save/get keyboard macro (Signature)

.sh Unix shell script

Unix ASCII file archive created by SHAR (

.sh3 Presentation (Harvard Graphics 3.0)

.shb Background (CorelShow)

.shd Print Spooler Shadow file

.shg Segmented-graphics bitmap

.shk Compressed Apple II file archive created by SHRINKIT

.shm Shell macro (WordPerfect Library)

.shn Shorten audio compression file

.shp Shape file and source file for text fonts (AutoCAD)

.shr Unix ASCII file archive created by SHAR (

.shs Scrap Object

.shw Presentation (Harvard Graphics 2.0 - CorelShow)

Slide show (WordPerfect Presentations)

.shx Shape entities (AutoCAD)

.sid Commodore64 Music file

LizardTech MrSID Photo

.sif Setup Installation Files info (Windows NT Setup)

.sig Current program settings (Signature)

PrintShop Sign file

Signature file (PopMail)

.sik Backup file (Sicherungskopie) (MS Word)

.sim Aurora

PC Finder 2002C

PowerDVD file

Simulation (various)

.sis SymbianOS Installer file

.sit Compressed Macintosh archive created by STUFFIT (

.skf Autosketch file

.skn Interface skins images (FileWrangler, SecurDesk!, SecurDesk! LV, ZipWrangler)

.sl S-Lang source code file

.slb Slide library (AutoCAD)

.slc Compiled SALT script (Telix)

.sld Slide (AutoCAD)

.sli Slide (MAGICorp Slide Service)

.slk Sylk Symbolic Link format data file (MultiPlan)

.sll Sound data file

.slt Salt Script Application Language for Telix script source (Telix)

.sm Smalltalk source code file

Maillist (SoftSpoken Mailer)

Script (ScriptMaker)

Text file (Samna Word)

.smc Super Nintendo Game-console ROM Image

.smd StarOffice Mail

.smf Fax (SMARTFAX)

.smi RealPlay SMIL file

Self Mounting Image file

.smk Compressed File (Smacker)

.smm Macro (Ami Pro)

.smp Sample (sound file)

.sms Microsoft Package Definition file

Sega Master System Emulator

.smt Text file (Smart Ware II)

.snd Digitized sound file (Macintosh/ATARI/PC)

.sng Song (midi sound) (Midisoft Studio - Prism)

.snm Netscape mail

.sno Snobol4 source code file

.snp CoffeeCup HTML Editor Snippet

Computer Eyes Video Output

Microsoft Access Snapshop

Snapview Shapshot

.snx Mirage Microdrive Snapshot Extended Version

Second Nature Software Graphic

StarCraft Saved file

.sol Solution eg. game walkthroughs

.som Network serial numbers (Quattro Pro)

Sort information (Paradox)

.son Song (SBStudio II)

.sou Sound data (sound tool)

.sp Compressed file archive created by SPLINT (unix)

.spa Macromedia FutureSplash file

Smart Protocol Analyzer Real Time Communication Data

SmartPA Saved Capture file

Thermo Nicolet OMNIC file

.spc Program (MS Multiplan)

Temporary file (WordPerfect for Win)

.spd Scalable font (Speedo) (Harvard Graphics 3.0)

.spf Slide presentation file (EnerGraphics)

.spg Glossary (Sprint)

.spi Graphics (Siemens and Philips scanner)

.spl Compressed file archive created by SPLINT (splint.arc)

Customized printer driver (Sprint)

Personal spell dictionary (Signature)

Print spooling file (Windows 3.x)


.spm Data (WordPerfect) wp{wp}.spm

.spo Statistical Program (SPSS)

.spp Printer file (Sprint)

.spr Document letter (Sprint)

Genarated screen program (FoxPro)


.sps Spssx source code file (VAX/VMS)

Screen driver (Sprint)

.spt Spitbol source code file

Support file (MITAC disk/system management utility pack)

.spw Worksheet (SigmaPlot)

.spx Compiled screen program (FoxPro)

.sql SQL report or query

.sqz Compressed file archive created by SQUEEZE (sqz1083e.exe)

.src Source (DataFlex)

.srf Sun Raster File graphics

.srp Script (QuickLink)

.srt BSplayer Subtitle file

Omron CX-Supervisor

SDR99 Speech Recognition Task Speech Recogniser Transcript

.ss Bitmap graphics (Splash)

.ssa Subtitles

.ssd Datafile (SAS/PC)

.ssf Enable Spreadsheet file

.ssm RealPlayer Standard Streaming Metafile

.ssp Datafile (SAS Transport)

.st Smalltalk source code file (Little Smalltalk)

Instrument library (Scream Tracker)

Stamp (NeoPaint)

.st3 MIDI Karaoke file

.sta Saved state (Reflection 4.0)

Stack (Spinmaker Plus)

.stb Stub library (Genus GX Kernel)

.std State Transition Diagram graphic file (Prosa)

Standard (something..) (LocoScript)

.stf Compressed file archive created by SHRINKTOFIT

.stm State Transition Diagram model file (Prosa)

Music (Scream Tracker)

.stn ArcView Geocoding Standardization file

STiNG file

.sto Pascal stub OBJ file (Genus GX Kernel)

.stp PageKeeper Packed Storage file

DART Pro 98 system settings

AP203 Step file

.str Structure list object file (dBASE Application Generator)

.sts Project status info (MS C/C++)

Song format (Scream Tracker)

.stt Automap Template

SureThing CD Labeler Template file

.stu Tarantella Enterprise 3 3270 Emulator Style file

xyALGEBRA file

.stw Data file (SmartTerm for Windows)

.stx Electronic book (SmarText)

Tax form (CA-Simply Tax)

.sty Style library or sheet (many text and graphics programs)

.sub CloneCd related file

.sui Suit library (Simple User Interface Toolkit)

.sum Summary

.sun Sun rasterfile graphics

.sup Supplementary dictionary (WordPerfect for Win)

.sv4 RollerCoaster Tycoon Saved Game

.svd Autosave file for document (MS Word)

.svg Autosave file for glossary (MS Word)

.svp WISCO Survey Power

Sonique Visual Plugin file

SwiftView Command file

.svs Autosave file for style sheet (MS Word)

.sw Audio file (signed word)

.swd Storybook file

Sabiston Textbook

.swf ShockWave Flash object

.swg Swag packet (SWAG Reader)

.swi Swish Data file

.swk Swapkeys Keyboard File

.swp Document backup (Sprint)

Swap file (DOS)

.sxw Writer 6.0 text file

Staroffice Word Document

.sy1 Smartpix symbol library (Ami Pro)

.sy3 Symbol file (Harvard Graphics 3.0)

.syd Backup of startup files created by QEMM (?) autoexec.syd

.sym Precompiled headers (Borland C++)

Program symbol table (many compilers and linkers)

Symbol file (Harvard Graphics 2.0)

.syn Sdsc Synu image file (SDSC Image Tool)

Synonym file (MS Word 5)

.sys Datafile (SYGRAPH - SYSTAT - SPSS/PC)

System file - device driver or hardware configuration info (DOS)

.syw Graphics symbols (Harvard Graphics Win)

.t Tads source

Tape Archive (tar) without compression

Tester symbol table (ReaGeniX code generator)

.t44 Temporary file for Sort or Index (dBASE IV)

.t64 Program (C64S emulator)

.tab Guitar Tablature file

MapInfo Table

Diabetes Mentor file

.tag Query tag name (DataFlex)

.tah Turbo Assembler Help file (Borland C++)

.tal Text illustration (TypeAlign)

.tao IsoBuster file

.tar Compressed file archive created by TAR (pax2exe.zoo)

.tax TurboTax file

.taz Compressed ASCII file archive created by TAR and COMPRESS (.tar.Z)

.tb1 Font file (Borland Turbo C)

.tb2 Font file (Borland Turbo C)

.tbf Fax (Imavox TurboFax)

.tbh Mah Jongg for Windows Tile Set

.tbk Memo backup (dBASE IV - FoxPro)

Toolbook (Asymetrix ToolBook)

.tbl Graphics (native format) (PageMaker TableEditor)

Table of values (OS/2)

.tbs Text elements ?? (Textbausteine) (MS Word)

.tbx Table (Project Scheduler 4)

.tc Configuration (Turbo C - Borland C++)

.tch Turbo C Help file (Borland C++)

.tcl Tool Command Language source code (Swat)

.tcw Drawing (TurboCAD for Windows)

.td Configuration file (Turbo Debugger for DOS)

.td0 Disk image file (Teledisk)

.td2 Configuration file (Turbo Debugger for Win32)

.tdb Database (TACT)

.tdf Font (TheDraw)

Typeface definition file (Speedo)

.tdh Help file (Turbo Debugger)

.tdk Keystroke recording file (Turbo Debugger)

.tds Symbol table (Turbo Debugger)

.tdt ASCII Data File in CSV Format

Daylight Fingerprint Data file

.tdw Configuration file (Turbo Debugger for Windows)

.tee TeeChart Office graphic

.tef Fax (Relisys TEFAX)

.tel Host file (Telnet)

.tem Turbo Editor Macro Language script (Borland C++)

Input template (IconAuthor)

.tex Tex text file (Scientific Word)

Datasheet (Idealist)

.tf Configuration (Turbo Profiler)

.tfa Area file (Turbo Profiler)

.tfc Catalogue file (Tobi's Floppy Cataloguer)

.tfh Help file (Turbo Profiler)

.tfm Tex Font Metric file (TeX)

Tagged font metric file (Intellifont)

.tfs Statistics (Turbo Profiler)

.tfw ArcView World File For TIF Image

Digital Raster Graphic World

.tg1 Project file (On Target)

.tga Truevision Targa bitmap graphics

.tgz Compressed file archive created by TAR and GNUzip (.tar.gz)

.thb KinuPix Skin

.thd Thread

.thm Microsoft Clipart Gallery database

Serif DrawPlus Theme

.thn Graphics Workshop for Windows Thumbnail

.ths Thesaurus dictionary (WordPerfect for Win)

.tif Tagged Image File Format bitmap graphics (PageMaker - CorelDRAW)

.til Fuzzy logic knowledge base (Togai InfraLogic Fuzzy-C Compiler)

.tim Playstation Game Texture Image

The Incredible Machine Level File

.tis Tile set (MahJongg 3.0)

.tix ASA for UNIX Terminfo Extension file

DivX file

Hybrid Graphics file

Tix Widgets

.tjl Backup file (VAXTPU editor)

.tlb Reference table (Bubble Chamber)

Text library (VAX)

.tlb Type library (Visual C++)

.tlc Compiled Tool Command Language source code (Swat)

.tlp Project (TimeLine)

.tlt Trellix Web Design file

.tmb Timbuktu Pro Connection Document

.tmd Document (TextMaker)

.tmf Tagged Font Metric file (WordPerfect for Win)

.tmo Ztg global optimizer default output file (Zortech C++)

.tmp Temporary file

.tmq TestMaster file

.tms Script (Telemate)

.tmv Template (TextMaker)

.toc Table Of Contents

.tol Kodak Photoenhancer

.tos Self-extracting file archive (Atari ST)

.tp Configuration (Turbo Pascal)

Session-state file (Turbo Profiler)

.tp3 Template (Harvard Graphics 3.0)

.tpb Downloadable PCL Soft font file backup (HiJaak)

.tpf Downloadable PCL Soft font file (HiJaak)

.tph Help file (Turbo Pascal)

.tpl Resident units library (Turbo Pascal)

Template (Harvard Graphics 2.0)

.tpp Protected Mode Units (Borland Pascal 7.0)

.tps Clarion for Windows data file

.tpu Turbo Pascal Unit (BGI) (Turbo Pascal)

Command file (VAXTPU editor)

.tpw Session-state file (Turbo Profiler for Windows)

Turbo Pascal Unit (BGI) (Turbo Pascal for Windows)

.tpz Compressed file archive created by TAR and GNUzip (.tar.gz)

.tr Session-state settings (Turbo Debugger for DOS)

Man page input suitable for troff -man (

.tr2 Session-state settings (Turbo Debugger for Win32)

.trace ECXpert Debugging file

TcpDump Output file

Telcordia Software Visualization and Analysis Toolsuite

WebSTAR Mail Server Error file

Zope 3 Strace Log

.trc Debug support file (Power CTrace)

.tre Directory tree file (PC-Tools)

.trg Symantec LiveUpdate file

.tri Trigram file

.trk Kermit Script file

Mixman Studio Track

Train Dispatcher Railroad Centgralized Traffic Control Simulation

.trm Terminal settings (Windows 3.x)

.trn Translation support file (Quattro)

.trp Tripmaker file

.trs Executable file (Micrografx)

.trw Session-state settings (Turbo Debugger for Windows)

.trx Emerald PC Authorize Batch Transaction file

.tsk Skins for Pocket PC PDAs

PhotoImpact Quick Command

.tsp Windows Telephony Service Provider

.tst Printer test file (WordPerfect for Win)

.ttf Truetype Font file

.tub PaintShop Pro Tube file

.tut Tutorial

.tv Table view settings (Paradox)

.tv1 Overflow file above insert point in Doc 1 (WordPerfect for Win)

.tv2 Overflow file above insert point in Doc 2 (WordPerfect for Win)

.tv3 Overflow file above insert point in Doc 3 (WordPerfect for Win)

.tv4 Overflow file above insert point in Doc 4 (WordPerfect for Win)

.tv5 Overflow file above insert point in Doc 5 (WordPerfect for Win)

.tv6 Overflow file above insert point in Doc 6 (WordPerfect for Win)

.tv7 Overflow file above insert point in Doc 7 (WordPerfect for Win)

.tv8 Overflow file above insert point in Doc 8 (WordPerfect for Win)

.tv9 Overflow file above insert point in Doc 9 (WordPerfect for Win)

.tvf Table view settings (dBASE)

.tvo TeveoLive

.tvp NVIDIA Graphic Card Update file

.tvt RealPlayer

.txd Grand Theft Auto 3 Texture file

Letters Direct

.txf Compressed file archive created by TAR and FREEZE (.tar.f)

.txi Support file (TeX)

.txl Genesis3D Texture file

.txt Text file

.tym Time Stamp (PageMaker 4)

.tz Compressed file archive created by TAR and COMPRESS (.tar.Z)

.tzb Compressed file archive created by TAR - COMPRESS - BTOA (.tar.Z.btoa)

.uax Unreal Audio file

.ub Audio file (unsigned byte)

.uc2 Compressed file archive created by UltraCompressor II (

.ucn New compressed file archive created by UltraCompressor II

.ucs Universal Classification Standard Database file

.udc Acrobat Spelling file

.udf Filter (Photostyler)

.udl MS Data Link

.uds Sierra Generations Family file

.ue2 Encrypted file archive created by UltraCompressor II

.ufo Ulead Object file

.uha UHARC Compressed Archive

.uhs Universal Hint System (binary file)

.ui Espire source code file (Geoworks UI Compiler)

User interface (Sprint)

.uif Long prompts for windows (WordPerfect for Win)

.uih Espire header file (Geoworks UI Compiler)

.ul Ulaw audio file

.uld Information about uploaded files (Procomm Plus)

.ult Music (UltraTracker)

.umb Backup file (MemMaker)

.umx Unreal music file

.uni Unimod music module (MIKMOD)

Datafile (Forecast Pro)

.unq Fax View file

.unx Text file containing UNIX specific info

.upd Program update info

Update data (dBASE)

.upo Compiled update data (dBASE)

.upx ULead Photo Express Saved Image file

.usb D-Link FM Radio Update

USB Protocol Analyzer Trace

.usp Printer font with USASCII extended character set (PageMaker)

.usr User database file (Procomm Plus - Turbo C++ tour)

.utf AOL Updating Files

.utl Sound file

.utx Unreal Texture file

Unicode file

.uu Compressed ASCII file archive created by UUDE/ENCODE

.uue Compressed ASCII file archive created by UUENCODE (uuexe515.exe)

.uvr Ulead Cool 360 Viewer file

.uw Audio file (unsigned word)

.uwl WordPerfect User word list

.v Consistency check support file (ReaGeniX code generator)

Main input file for an image (Vivid 2.0)

.v64 Nintento 64 Emulation ROM Image

.val Validity checks and referential integrity (Paradox for Windows)

Values list object file (dBASE Application Generator)

.van Animation (VistaPro)

.var Variable file (IconAuthor)

.vbc Visual Business Cards

.vbd ActiveX file

.vbe VBScript Encoded Script file

.vbn Norton Corporate anti-virus quarantined file

.vbp Visual Basic Project

.vbs Visual Basic Script file (Visual Basic)

.vbw Visual Basic Project Workplace (Visual Basic)

.vbx Visual Basic eXtension (Visual Basic)

.vc Include file with color definitions (Vivid 2.0)

Spreatsheet (VisiCalc)

.vcd VisualCADD Drawing file

Video CD format

.vcf VCard file

.vch Interlock Public Computer Utility

.vcw Visual workbench information (MS Visual C++)

.vcx Spreatsheet (VisiCalc Advanced)

.vda Bitmap graphics

.vdb Norton AntiVirus Corporate Edition Update file

PC-cillin Quarantined file

.vdf AntiVir virus definition file

Vexira Anti-virus virus definition file

.vdm VDM Play

.vdr Drawing (ComputerEasy Draw)

.vdx XML for Visio Drawing file

Vector Graphic file

Virtual Device Driver

.vem VeePro Embroidery Software Format

Voice E-mail file

.vew View file (Clipper 5, Lotus Approach)

.vfm Voting Form (Voter)

.vfn Voting Form for Customers (Voter)

.vfp TMPGEnc VFAPI Plug-in

.vfx Ulead Video Studio Sample file

.vga Vga display driver

Vga display font

.vgd Vga display driver (Generic CADD)

.vgr Graphics (Ventura Publisher)

.vi Graphics (Jovian Logic VI)

.vic Vicar graphics

.vid Ms-DOS Shell Monitor file (MS-DOS 5)

Bitmap graphics (YUV12C M-Motion Frame Buffer)

Screen device driver (Word)

.vif Khoros Visualization image file (SDSC Image Tool)

.vik Viking graphics

.vir Virus Infected file

.vis Vis graphics

.viv VivoActive Player Video file

.vlm Ashlar-Vellum file

Novell Virtual Loadable Module

Vellum CAD Drawing

.vm Virtual Memory file (Geoworks)

.vm1 Panasonic SD Voice Editor file

.vmc Virtual memory configuration (Acrobat reader)

.vmf Font characteristics (Ventura Publisher)

Voice mail file (VocalTec Voice)

.vml Vecor Markup Language

.vmo Mobile Phone voice file (Siemens Sl45)

Virtools Behavioral Server Composition (Web-based Protected Format)

Cosmopolitan Virtual Makeover File

.vmp Logos Library System 2.x Verse Map

.vms Text file containing VMS specific info

.vo Include file with object definition (Vivid 2.0)

.vob DVD video movie file

.voc Digitized samples (Creative Voice file)

.vof Object folder (VZ Programmer)

.vol Tribes 2 game file

Earth Siege 2 Archive

Giants: Citizen Kabuto Archive

Tribes Archive

Tribes Extreme Archive

.vor Template

.vox Vox Audio

Dialogic ADPCM

Talking Technology Inc. file

Natural MicroSystmes Voice file

.vpa Excite Chat Gestures file

.vpd Virpet Performance Descriptor

VitaGraph file

.vpg Graphics (VPGraphics)

.vpp Virtual Pool Game

Red Faction/Summoner Package file

.vqe Yamaha Sound-VQ Locator file

.vqf Yamaha Sound-VQ file

.vql Yamaha Sound-VQ Locator file

.vrd VRScape data file

.vrm Overlay file (QuattroPro)

.vro Panasonic DVD Recorder file

.vrp Project (WATCOM VXRexx)

.vrs Video Resource eg. video device driver (WordPerfect)

.vs Include file with surface definition (Vivid 2.0)

.vsd Diagram (Shapeware Visio)

.vsl GetRight Download List file

Visio Library

.vsm Simulation model (VisSim)

.vsp Sprite (SPX)

.vss Smartshapes file (Shapeware Visio)

.vst Truevision Vista bitmap graphics

.vtx XML for Visio template file

.vue Animation (3D Studio)

View (dBASE IV - FoxPro)

.vw Text file (Volkswriter)

.vw3 Text file (Volkswriter 3)

.vwl VideoWave Video Wave Library

.vwr File viewer file (PC Tools)

.vwt VideoWave Thumbnail

.vxd Virtual device driver (MS Windows)

.vxs Voice Xpress User Profile

.vyd VyperHelp

.w Word chart file (APPLAUSE)

.w30 Printer font (AST TurboLaser) (Ventura Publisher)

.w31 Startup file (Windows 3.1)

.w3g Warcraft III file

.w3m Warcraft III Map file

.w44 Temporary file for Sort or Index (dBASE)

.wab Outlook File

.wac Infinity Game Engine WAVC Sound

.wad Doom Game file

Gunman Chronicle Archive

Half Life Archive

Heretic Archive

Hexen Archive

Quake Archive

Theme Park World Archive

.waf Mayim's WAF Compiler file

.wal WalMaster Showlist file

.war Java Web Archive

.wav Waveform audio file (RIFF WAVE format)

.wb1 Notebook (Quattro Pro)

.wb2 Spreadsheet (Quattro Pro)

.wb3 Quattro Pro for Windows

.wba WindowBlinds Compressed Skin (changes the look and feel of WindowsXP)

.wba Winace Zip file

.wbc Webshots Picture Collection

.wbf Ms Windows Batch File (Catch)

.wbk Document/workbook (WordPerfect for Win)

.wbt Batch file (WinBatch)

.wbx Webigger file

.wbz WebShots file

.wcd Macro token list (WordPerfect for Win)

.wcm Data transmission file (MS Works)

Macro (WordPerfect for Win)

.wcp Product information description (WordPerfect for Win)

.wd2 Info Select for Palm Organizer file

WordExpress Document

.wdb Database (MS Works)

.wdf ReliaSoft Weibull 5.0

Workshare DeltaView DeltaFile

.wdl Windows XP Watchdog Log file

.web Web source code file

.wfm Form object (dBASE Form Designer)

.wfn Font (CorelDRAW)

.wfx Data file (Winfax)

.wg1 Worksheet (Lotus 1-2-3/G)

.wg2 Worksheet (Lotus 1-2-3 for OS/2)

.wid Width table (Ventura Publisher)

.win Window file (FoxPro - dBASE)

Wonderware InTouch window file

.wiz Page wizard (MS Publisher)

.wjp WildTangent Branded .jpg file

.wk1 Spreadsheet (Lotus 1-2-3 version 2.x - Symphony 1.1+)

.wk3 Spreadsheet (Lotus 1-2-3 version 3.x)

.wk4 Spreadsheet (Lotus 1-2-3 version 3.4)

.wkb Document (WordPerfect for Win)