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<p>《前言》<br><br> 经常有网友问什么什么扩展名的文件要用什么程序来打开，事实上，电脑上<br>面真正能表示文件的类型并且得到一致承认的扩展名并不是很多，而大多数扩展<br>名一般都是由使用该文件的软件的开发者定义，例如，我写的程序里面用到的数<br>据文件，我一般就用CCB这个扩展名，这说明，单纯从扩展名上来了解这个文件几<br>乎可以说是完全没有意义的，另外，以前经常玩DOS游戏的朋友可能还记得这两个<br>老游戏，一个是叫“雀之塔”的，里面的所有文件，包括数据文件，扩展名都是<br><br>.exe，你要是以为它们都是我们熟悉的可执行文件那就错了，还有一个叫“美女<br>梭哈”的扑克游戏，里面的数据文件全部都叫TIF，你要是以为那些都是图片文件<br><br>TIFF格式那也大错特错了。所以说，只有众所周知的扩展名才有意义，一些由软<br>件开发者自定义的扩展名，对使用者来说是没意义的。至于用什么软件来打开，<br>我的看法是，你在哪里找到这种文件的，就用那个软件来打开，如果你在垃圾堆<br>里捡到一个不知道是什么的文件，那我看你还是把它放回垃圾堆吧，呵呵。而且<br>，关键的问题是你要打开它来做什么，如果你不知道它是什么，只是有点好奇想<br>打开它来看看，那么用ULTRAEDIT或记事本来打开就可以了，而如果你连它是什么<br>文件什么格式都不知道，却想要修改它，那就几乎是不可能的了，还有，一些文<br>件格式已经成为标准，例如GIF格式，用来打开GIF文件的软件少说也有上千个。<br>而且，现在有大量的软件使用相同的扩展名的文件，而它们之间除了扩展名相同<br>之外没有任何共同之处，例如，.dat，既有可能是VCD影碟里面的MPEG文件，也有<br>可能是不同的软件使用的格式完全不同的数据文件，所以，除了那些众所周知的<br>扩展名，那些扩展名几乎不代表任何意义。<br> 当然，有些网友在网上下载了一些文件，回来后却不知道怎样用，例如下载<br>了一些教程，是扩展名是.wdl的，或者一些是.000，.001，等的，前面一个是华<br>康的DYNADOC格式，后一个是超星格式，其实这样想一下，你既然下载它，一定是<br>有理由的，至少你知道它是教程，我想你不会无缘无故地，连它是什么东西都不<br>清楚就下载下来吧？既然这样，你同时看看下载教程的地方，一般会有说明而且<br>都会有这两个阅读器下载的。<br> 更可靠的增加对各种扩展名的了解的方法就是多用软件，例如，用过PHOTO <br> SHOP之后，你就知道PSD是PHOTO SHOP的图片格式，学过了COREL DRAW之后你<br>就会认识很多格式例如CDR，CMX，EPS，等等，这些都是靠平时的积累。<br> 不过，这世界也太大了，单是被公认了的扩展名就不计其数，而且有时不同<br>程序还会用同一个扩展名来命名它们使用的不同的数据文件，所以要掌握各种不<br>同扩展名所对应的格式真的不容易呢。这几天在网上闲逛，在一个网站上看到这<br>个“Every File Format in the World”觉得还不错，也许对大家有用处，所以<br>把它们全拉下来，放在这里给大家参考，以后如有关于扩展名或文件格式的疑问<br>就来这里查查吧。<br> 我把英文原文放上来，这一方面是由于没时间翻译，其次也觉得英文原文最<br>准确，翻译了未必正确，说不定会曲解了愿意，再说其实这些解释都很简单，基<br>本上也没有翻译的必要，如果确实看不懂，用词霸或东方快车看一下应该也没什<br>么问题的。<br> 因为是国外网站的资料，所以一些国内比较流行的格式如WPS等，并未被收录<br>。<br> 如果大家对这方面的内容有兴趣，也可以自己到http://www.whatis.com看看<br>，你可以在那里找到很多很多有用的资料，不过前提是你的英语水平要过得去。<br><br><br>晓梦（CyberCowBoy）<br>＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝<br><br>"Every File Format in the World" <br><br>This is a list of file name extension or suffixes that indicate the fo<br>rmat or usage of a file and a brief description of that format. We don<br>'t really show the file format itself here. In fact, many formats are <br>proprietary and we couldn't show them to you. In some cases, we link t<br>o a definition of the file format or to related information. <br>In general, if you have the program that uses the file format, that pr<br>ogram can be used to open or otherwise use the file. Some file formats<br> (for example, the GIF file format used for Web page images) are stand<br>ard formats that can be opened by any program that supports that stand<br>ard format. <br><br>Many people have contributed to this list and we thank them! If you kn<br>ow of file name extensions that should be added to this list, please e<br>-mail us and we'll add them. <br><br>A Object code library <br>A Library file (Unix) <br>AA Audible audio file (commonly used for downloadable audio books) <br>AAM Authorware shocked file <br>AAS Authorware shocked packet <br>AB Applix Builder file <br>ABF Adobe Binary Screen Font <br>ABK Backup file (PrintMaster Gold) <br>ABK Corel Draw AutoBackup <br>ABM Audio album file (HitPlayer) <br>ABO Applix Builder Turbo file <br>ABS MPEG Audio Sound file <br>ABS Standard GNU compiler output file for a PC platform <br>ABS Sometimes used to denote an abstract (as in an abstract or summary<br> of a scientific paper) AutoBackup <br>ACA Project Manager Workbench file <br>ACA HTTP animation file (Microsoft Agent) <br>ACB ACBM Graphic image <br>ACC DR-DOS Viewmax file <br>ACD Character definiton file (Microsoft Agent) <br>ACE ACE Archiver Compression file <br>ACF HTTP character file (Microsoft Agent) <br>ACI ACI development appraisal (ACIWEB) <br>ACL Corel Draw 6 keyboard accelerator file <br>ACM Windows system directory file <br>ACM Interplay compressed sound file (Fallout 1,2, Baulder's Gate) <br>ACM Dynamic Link Library (DLL) <br>ACP Microsoft Office Assistant Preview file <br>ACR American College of Radiology file <br>ACS Character structered storage file (Microsoft Agent) <br>ACT Microsoft Office Assistant Actor file <br>ACT FoxPro Foxdoc Action Diagram <br>ACT Action Presentation <br>ACT Documenting wizard action diagram (Microsoft Visual FoxPro) <br>ACV Used to Compress and decompress audio data <br>AD After Dark screensaver <br>Ada Ada source text file (non-GNAT) <br>ADB Ada source text body file (GNAT) <br>ADB HP 100LX Organizer Appointment database <br>ADC Scanstudio 16 color Bitmap Graphic file <br>ADD OS/2 adapter driver file used in the boot process <br>ADF Amiga disk file <br>ADI AutoCAD device-independent binary plotter file <br>ADL QEMM Mca adaptor description library <br>ADM After Dark MultiModule screensaver (Microsoft) <br>ADM Windows NT policy template <br>ADN Lotus 1-2-3 Add-In file <br>ADP Dynamic Page file (AOLserver) <br>ADP FaxWorks Faxmodem setup file <br>ADP Astound Dynamite file <br>ADR After Dark Randomizer screensaver <br>ADR Smart Address address book <br>ADS Ada source text specification file (GNAT) <br>ADT HP NewWave datafile for card applications <br>ADT AdTech Fax file <br>ADX Dynazip Active Delivery script <br>ADX Lotus Approach dBase Index <br>ADX Archetype Designer Document <br>ADZ Packed ADF file (Extracts with WinZip) <br>AE Author/Editor file (SoftQuad) <br>AEP ArcExplorer project file <br>AF2 ABC FlowCharter 2.0 Flowchart <br>AF3 ABC Flowchart <br>AFC Apple Sound file <br>AFI Truevision Bitmap graphic <br>AFM Adobe metrics <br>AFM HP NewWave Cardfile application <br>AG Applix graphic <br>AI Adobe Illustrator drawing <br>AI Corel Trace drawing <br>AIF Audio Interchange File, a sound format used by Silicon Graphics an<br>d Macintosh applications <br>AIFC Similar to AIF (compressed) <br>AIFF Similar to AIF <br>AIM AOL Instant Messenger Launch file <br>AIN AIN Compressed archive <br>AIO APL transfer file <br>AIS ACDSee Image Sequence <br>AIS Velvet Studio Instruments file <br>AIS Xerox Arry of Intensity Samples Graphic <br>AIX HP NewWave Cardfile Application data <br>AKW Contains all A-keywords in the RoboHELP Help Project Index Designe<br>r not associated with topics <br>ALAW European Telephony audio <br>ALIAS Alias Image <br>ALB JASC Image Commander album <br>ALI Document file (SAP proprietary format) <br>ALL Arts &amp; Letters Library <br>ALL WordPerfect for Windows General printer information file <br>ALS Alias Image <br>ALT WordPerfect Library Menu <br>AM Applix SHELF Macro <br>AMF Music file (Advanced Module Format) <br>AMF DSMIA/Asylum module music (Crusader,No Remorse,Aladdin) <br>AMG AMGC Compressed archive <br>AMG ACTOR System image <br>AMI Annotation file (Cocreate SolidDesigner) <br>AMS Velvet Studio music module (MOD) file <br>AMS Extreme's Tracker module <br>AN Text file (Sterling Software) (Groundworks COOL Business Team Model<br>) <br>ANC Canon Computer Pattern Maker file that is a selectable list of pat<br>tern colors <br>ANI Microsoft Windows Animated cursor <br>ANM DeluxPaint Animation <br>ANN Windows 3.x Help annotation <br>ANS ANSI Text file <br>ANT SimAnt for Windows saved game <br>AOS Nokia 9000 Add-on software <br>AOT Applicatio binary object template file (ZenWorks snAPPshot) <br>AP Applix Presents file <br>AP WHAP Compressed Amiga archive <br>APC Compiled application file (Centura Team Developer) <br>APC Lotus 1-2-3 Printer driver <br>APD Dynamic application library file (Centura Team Developer) <br>APD Lotus 1-2-3 Printer driver <br>APF Lotus 1-2-3 Printer driver <br>APF Project file (Allaire) (Created by Homesite) <br>API Application Program Interface; used by Adobe Acrobat <br>API Lotus 1-2-3 Printer driver <br>APL Application library file (Centura Team Developer) <br>APL APL Workspace file <br>APP Normal mode application file (Centura Team Developer) <br>APP Symphony Add-in Application <br>APP Generated application or active document (Microsoft Visual FoxPro)<br><br>APP dBase Application Generator Object <br>APP DR-DOS Executable Application <br>APP FoxPro Generated Application <br>APR ArcView project file <br>APR Employee Appraiser Performance Review file <br>APR Lotus Approach 97 View file <br>APS Microsoft Visual C++ file <br>APS Advanced patching systems with error checking, (Similar to IPS) <br>APT Lotus Approach Data view file <br>APT Text mode application file (Centura Team Developer) <br>APX Lotus Approach Paradox-Specific information file <br>APX Borland C++ Appexpert database <br>AQ Applix data <br>ARC LH ARC (old version) compressed archive <br>ARC SQUASH Compressed archive <br>ARF Automatic Response file <br>ARI ARI Compressed archive <br>ARI Aristotle audio file <br>ARJ Robert Jung ARJ compressed archive (ARJ) <br>ARK ARC File Archiver CPM/Port archive <br>ARL AOL v4.0 organizer file <br>ARR Atari Cubase Arrangement <br>ART Xara Studio drawing <br>ART Canon Crayola art <br>ART Clip Art <br>ART Ray Tracer file <br>ART First Publisher Raster graphic <br>ART AOL Image file compressed using the Johson-Grace compression algor<br>ithm <br>ARX ARX Compressed Archive <br>AS Applix Spreadsheet <br>ASA Microsoft Visual InterDev file <br>ASC ASCII text file <br>ASC PGP armored encrypted file <br>ASD WinWord AutoSave file <br>ASD Lotus 1-2-3 Screen driver <br>ASD Microsoft Advanced Streaming Format (ASF) description file; opens <br>with NSREX <br>ASD Astound Presentation <br>ASE Velvet Studio Sample file <br>ASF Music file (Electronic Arts) <br>ASF Microsoft Advanced Streaming Format <br>ASF StratGraphics Datafile <br>ASF Lotus 1-2-3 Screen font <br>ASH TASM 3.0 Assembly language header <br>ASI Borland C++/Turbo C Assembler Include file <br>ASM Assembler Language source file <br>ASM Pro/E assembly file <br>ASO Astound Dynamite Object <br>ASP Active Server Page (an HTML file containing a Microsoft server-pro<br>cessed script) <br>ASP Procomm Plus setup and connection script <br>ASP Astound Presentation <br>AST Astound multimedia file <br>AST Claris Works "assistant" file <br>ASV DataCAD Autosave file <br>ASX Cheyenne Backup script <br>ASX Microsoft Advanced Streaming Redirector file <br>ASX Video file <br>AT2 Aldus Persuasion 2.0 Auto Template <br>ATM Adobe Type Manager data/info file <br>ATT AT&amp;T Group 4 bitmap <br>ATW AnyTime Deluxe for Windows personal information manager file from <br>Individual Software MultiModule screensaver <br>AU Sun/NeXT/DEC/UNIX sound file <br>AU Audio U-law (pronounced mu-law) <br>AUD Audio file (Westwood Studios) (Kyrandia 3,C&amp;C,RedAlert,C&amp;C:TS) <br>AUX TeX/LaTeX Auxilliary Reference file <br>AUX ChiWriter Auxilliary Dictionary file <br>AVA Avagio Publication <br>AVB Inculan Anti-Virus virus infected file <br>AVI Microsoft Audio Video Interleaved file for Windows movie <br>AVR Audio Visual Research file <br>AVS Application Visualization System file <br>AVS Stardent AVS-X Image <br>AVX File Extension (ArcView) <br>AW HP AdvanceWrite Text file <br>AW Applix Words file <br>AWD FaxView Document image <br>AWK AWK Script/Program <br>AWM Animation Works Movie <br>AWR Telsis file for digitally stored audio <br>AWS StatGraphics Data file <br>AXL ArcIMS XML project file <br>AXT ASCII application object template (ZenWorks snAPPshot) <br>AXX ARJ compressed file from a multi-volume archive (xx = a number fro<br>m 01 to 99) <br>A3L Authorware 3.x library <br>A4L Authorware 4.x library <br>A5L Authorware 5.x library <br>A3M Authorware MacIntosh file (unpackaged) <br>A4M Authorware MacIntosh file (unpackaged) <br>A4P Authorware file (packaged without runtime) <br>A3W Authorware Windows file (unpackaged) <br>A4W Authorware Windows file (unpackaged) <br>A5W Authorware Windows file (unpackaged) <br>＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝<br><br><br>B Applause Batch list <br>BAD Oracle bad file <br>BAK Backup file <br>BAL Ballade Music score <br>BAR dBase Application Generator Horizontal menu object <br>BAS BASIC source code <br>BAT Batch file <br>BB Papyrus Database backup <br>BBL TeX/BibTeX Bibliographic reference file <br>BBM Deluxe Paint Bitmap image <br>BBS Bulletin Board Sytem text <br>BCH Batch Process Object (dBase Application Generator) <br>BCH Datalex Entry Point 90 Data file <br>BCM Microsoft Works Communications file <br>BCO Bitstream Outline font description file <br>BCP Borland C++ Makefile <br>BCW Borland C++ 4.5 Environment settings file <br>BDB Microsoft Works Dababase file <br>BDF West Point Bridge Designer file <br>BDF Egret Datafile <br>BDR Microsoft Publisher Border <br>BEZ Bitstream Outline font description <br>BF2 Bradford 2 Font <br>BFC Windows 95 Briefcase Document <br>BFM Font Metrics file (Unix/Mainframe) <br>BFX Fax document file (BitFax) <br>BG Microsoft Backgammon Game file <br>BGA OS/2 Graphic array <br>BGI Borland Graphics Interface Driver <br>BGL Microsoft Flight Simulator Scenery file <br>BHF pcAnywhere Host file <br>BI Binary file <br>BIB Bibliography file (ASCII) <br>BIB TeX/BibTeX Literature Database <br>BIB Database <br>BIF GroupWise initialization file <br>BIF Image Capture Board Binary Image black &amp; white graphic <br>BIFF XLITE 3D file <br>BIN Binary file <br>BIO OS/2 Bios file <br>BIT X11 Bitmap <br>BK Backup file (Generic) <br>BK JetFax Faxbook file <br>BK$ Backup file (Generic) <br>BK! WordPerfect for Windows Document backup <br>BK1 WordPerfect for Windows Timed backup file for document window 1 <br>BK2 WordPerfect for Windows Timed backup file for document window 2 <br>BK3 WordPerfect for Windows Timed backup file for document window 3 <br>BK4 WordPerfect for Windows Timed backup file for document window 4 <br>BK5 WordPerfect for Windows Timed backup file for document window 5 <br>BK6 WordPerfect for Windows Timed backup file for document window 6 <br>BK7 WordPerfect for Windows Timed backup file for document window 7 <br>BK8 WordPerfect for Windows Timed backup file for document window 8 <br>BK9 WordPerfect for Windows Timed backup file for document window 9 <br>BKP TurboVidion Dialog Designer Backup <br>BKS IBM BookManager Read bookshelf file <br>BKS Microsoft Works Spreadsheet Backup <br>BKW FontEdit Fontset mirror image <br>BLB Resource archive (DreamWorks),(Neverhood) <br>BLD BASIC Bloadable picture file <br>BLK Alias Wavefront Image <br>BLK WordPerfect for Windows Temporary file <br>BM Windows system Bitmap <br>BMF Corel Gallery file <br>BMK Windows Help bookmark <br>BMP Windows or OS/2 bitmap <br>BM1 Apogee BioMenace data <br>BN Instrument bank file (AdLib) <br>BNK Sound effects bank file (Electronic Arts) <br>BNK Instrument Bank file (AdLib) <br>BOL Compressed archive library file (Microsoft Booasm.arc) <br>BOM Bill of materials file (Orcad Schematic Capture) <br>BOO Microsoft Booasm.arc Compressed archive <br>BOOK Adobe FrameMaker Book <br>BOX Lotus Notes file <br>BPC Business Plan Toolkit Chart <br>BPL Borland Delphi 4 packed library <br>BPS Microsoft Works Document <br>BPT CorelDraw Bitmap fills file <br>BPX Truevision Targa Bitmap <br>BQY BrioQuery file <br>BR Bridge Script <br>BRD Eagle Layout file <br>BRK Brooktrout Fax-Mail file <br>BRW Application file associated with financial institution(s) loan app<br>lications <br>BRX A file for browsing an index of multimedia options <br>BRZ DbBRZ file for very large Db backup or restore <br>BSA BSARC Compressed archive <br>BSC Apple II Compressed archive <br>BSC Fortran Pwbrmake Object <br>BSC MS Developer Studio (MSDev) browser information <br>BSP Quake map file <br>BS1 Apogee Blake Stone data file <br>BS_ Microsoft Bookshelf Find Menu shell extension <br>BTM Batch file used by Norton Utilities <br>BTR Database file (Btrieve 5.1) <br>BUD Backup disk for Quicken <br>BUG Bugs and Problems file <br>BUN CakeWalk Audio Bundle (a MIDI program) <br>BUP Backup <br>BUT Buttons! Button definition <br>BUY Movie data file <br>BV1 WordPerfect for Windows Overflow file below insert point in docume<br>nt 1 <br>BV2 WordPerfect for Windows Overflow file below insert point in docume<br>nt 2 <br>BV3 WordPerfect for Windows Overflow file below insert point in docume<br>nt 3 <br>BV4 WordPerfect for Windows Overflow file below insert point in docume<br>nt 4 <br>BV5 WordPerfect for Windows Overflow file below insert point in docume<br>nt 5 <br>BV6 WordPerfect for Windows Overflow file below insert point in docume<br>nt 6 <br>BV7 Wordperfect for Windows Overflow file below insert point in docume<br>nt 7 <br>BV8 WordPerfect for Windows Overflow file below insert point in docume<br>nt 8 <br>BV9 WordPerfect for Windows Overflow file below insert point in docume<br>nt 9 <br>BW SGI Black and White image file <br>BW Silicon Graphics Raw red,green and blue bytes file <br>BWB Visual Baler Spreadsheet application <br>BWR Kermit Beware buglist <br>BWV Business Wave file <br>BYU BYU Movie <br>BZ Bzip compressed file (Inix) <br>BZ2 Bzip compressed file (Unix) (replaces Bz) <br>B1N 1st Reader Mono and color binary screen image <br>B30 ABC Ventura publisher printer font <br>B4 Helix Nuts and Bolts file <br>B8 Raw graphic file (Piclab Plane II) <br>B_W Atari/Macintosh black and white graphic <br>B&amp;W Atari/Macintosh black and white graphic <br>B&amp;W 1st Reader Mono binary screen image <br>＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝<br><br>C C code <br>C Site configuration for Secure Remote (CheckPoint VPN) <br>CA Telnet Server Initial cache data file <br>CAB Microsoft cabinet file (program files compressed for software dist<br>ribution) <br>CAC dBase IV Executable file <br>CAD Softdesk Drafix Cad file <br>CAG Catalog file (Microsoft Clip Gallery v. 2.x,3.x,4.x) <br>CAL CALS Compressed Bitmap <br>CAL SuperCalc 4/5 Spreadsheet <br>CAL Calendar schedule data file <br>CAM Casio camera file <br>CAN Navigator Fax <br>CAP Ventura Publisher Caption <br>CAP Compressed music file <br>CAP Telix Session Capture file <br>CAR AtHome assistant file <br>CAS Comma-delimited ASCII file <br>CAT Quicken IntelliCharge categorization file <br>CAT dBase Catalogue file <br>CB Microsoft clean boot file <br>CBC CubiCalc Fuzzy Logic System file <br>CBI Column binary file (used in IBM mainframe systems) <br>CBL Cobol Source code <br>CBM XLib Compiled Bitmap <br>CBT Generic Computer based training file <br>CC Visual dBASE custom class file <br>CC C++ Source code <br>CCA cc:mail archive file <br>CCB Visual Basic Animated Button configuration file <br>CCC Curtain Call Native bitmap graphic <br>CCE Data file (Calendar Creator Plus) <br>CCF Multimedia Viewer configuration file used in OS/2 <br>CCF Symphony Communications Configuration file <br>CCH Corel Chart <br>CCL Intalk Communication Command Language <br>CCM Lotus CC:Mail "box" file (for example, INBOX.CCM) <br>CCO CyberChat data file <br>CCO XBTX Graphics <br>CCT Macromedia Director Shockwave cast file <br>CDA CD Audio Track <br>CDB Clipboard file <br>CDB CardScan Database (CardScan) <br>CDB TCU Turbo C Utilities Main database <br>CDB Conceptual model backup file (PowerDesigner) <br>CDF Netcdf Graphic file <br>CDF Microsoft Channel Definition Format <br>CDFS Compact Disk filing system (WindRiver) <br>CDI Phillips Compact Disk Interactive file <br>CDK Atari Calamus Document <br>CDM Conceptual model file (PowerDesigner) <br>CDM Visual dBASE custom data module <br>CDM Conceptual data model file (PowerDesigner Data Architect) (Sybase)<br><br>CDR Corel Draw Vector drawing file <br>CDR Raw Audio-CD data file <br>CDT Corel Draw template <br>CDT CorelDraw Data file <br>CDX Corel Draw compressed drawing <br>CDX Microsoft's Visual Foxpro index <br>CE The FarSide Computer Calendar Main CE file <br>CEG Tempra Show Bitmap graphic <br>CEL CIMFast Event Language file <br>CEL AutoDesk Animator Cel Image <br>CER Certificate file (MIME x-x509-ca-cert) <br>CF Imake Configurtion file <br>CFB Comptons Multimedia file <br>CFG Configuration file <br>CFL CorelFLOW Chart <br>CFM ColdFusion template <br>CFM Visual dBASE Windows customer form <br>CFM Corel FontMaster file <br>CFN Atari Calamus Font data file <br>CFO TCU Turbo C Utilities C form object <br>CFP The Complete Fax Portable fax file <br>CGA Ventura Publisher Display font file <br>CGI Common gateway interface script <br>CGM Computer Graphic Metafile <br>CH OS/2 configuration file <br>CH Clipper 5 Header <br>CH3 Harvard Graphics 3.0 Chart <br>CH4 Charisma 4.0 Presentation <br>CHD FontChameleon Font descriptor <br>CHF pcAnywhere remote control file <br>CHI ChiWriter Document <br>CHK File fragments saved by Windows Disk Defragmenter or ScanDisk <br>CHK WordPerfect for Windows Temporary file <br>CHL Configuration History Log <br>CHM Compiled HTML file <br>CHN Ethnograph Data file <br>CHP Ventura Publisher Chapter file <br>CHR Character Sets (Font file) <br>CHT ChartViewer file <br>CHT Harvard Graphics Vector file <br>CHT ChartMaster dBase Interface file <br>CIF CalTech Intermediate Graphic <br>CIF Easy CD Creator image <br>CIF pcAnywhere caller file <br>CIL Clip Gallery download package file <br>CIM Sim City 2000 file <br>CIN OS/2 change control file that tracks changes to an INI file <br>CIX TCU Turbo C Utilities Database Index <br>CKB Borland C++ Keyboard mapping file <br>CK1 iD/Apogee Commander Keen 1 data <br>CK2 iD/Apogee Commander Keen 2 data <br>CK3 iD/Apogee Commander Keen 3 data <br>CK4 iD/Apogee Commander Keen 4 data <br>CK5 iD/Apogee Commander Keen 5 data <br>CK6 iD/Apogee Commander Keen 6 data <br>CL Generic LISP Source code <br>CL3 Layout file (Adaptec Easy CD Creator) <br>CLASS Java class <br>CLG Disk Catalog database <br>CLL Cricket Software Clicker File <br>CLO Cloe Image <br>CLP Windows Clipboard <br>CLP Quattro Pro Clip art <br>CLP Clipper 5 Compiler Script <br>CLR 1st Reader Binary color screen image <br>CLR PhotStyler Color defintion <br>CLS Visual Basic Class Module <br>CLS C++ Class Definition <br>CM Craftman Data <br>CMA Database file in plain text format (APPLIX TM1) <br>CMD Command file for Windows NT (similar to a DOS .BAT file), OS/2 <br>CMD DOS CP/M command file <br>CMD dBase-II program file <br>CMD 1st Reader External Command Menu <br>CMF Corel Metafile <br>CFM Creative FM-Music <br>CMG Chessmaster saved game <br>CMK Card Shop Plus file <br>CMM CEnvi Batch file <br>CMP JPEG Bitmap <br>CMP Address document <br>CMP CorelDRAW 4.0 Postscript Printer Header <br>CMP Route 66 Address Document <br>CMP Microsoft Word for DOS User dictionary <br>CMR MediaPlayer Movie <br>CMV Corel Move animation <br>CMX Corel Presentation Exchange image <br>CMYK Raw cyan, magenta, yellow, and black bytes file <br>CNC CNC General Program data <br>CNF Configuration file used by Telnet, Windows, and other applications<br> with varying internal formats <br>CNM Windows application menu options and setup file <br>CNQ Compuworks Design Shop file <br>CNT Windows (or other) system content files for the help index and oth<br>er purposes <br>CNV Word for Windows Data conversion support file <br>CNV WordPerfect for Windows Temporary file <br>CNV Conversion files (WS_FTP Pro) files that will be converted from (E<br>xample) "HTML-"HTM" for upload <br>COB trueSpace 2 object <br>COB COBOL Source code <br>COD Microsoft C compiler output as displayable machine language/assemb<br>ler with original C as comments <br>COD FORTRAN Compiled code <br>COD dBase Application Generator Template source file <br>COD Video Text file <br>COL AutoDesk Animator Color Palette <br>COL Microsoft Multiplan Spreadsheet <br>COM Command file (program) <br>CON Simdir Configuration file <br>CP8 CP8 256 Gray Scale image <br>CPD Corel PrintOffice file (drawing) <br>CPD Fax Cover document <br>CPD Complaints Desk Script <br>CPE Fax Cover document <br>CPF The Complete Fax (Fax file) <br>CPH Image file (Corel Print House) see CPO <br>CPI Microsoft MS-DOS code page information <br>CPI ColorLab Processed Image bitmap <br>CPJ CeQuadrant CD Project <br>CPL Control Panel Module <br>CPL Compel Presentation <br>CPL Corel color palette <br>CPO Image file (Corel Print Office) <br>CPP C++ Source code <br>CPP CA-Cricket Presents presentation <br>CPR Corel Presents presentation <br>CPS Central Point PC Tools Backup <br>CPS Coloured postscript <br>CPT Corel Photo-Paint image <br>CPT Macintosh Compressed Archive <br>CPT dBase Encrypted Memo <br>CPT CA-Cricket Presents Template <br>CPX Corel Presentation Exchange compressed drawing <br>CPY Data file (Copy Books) <br>CPZ COMPOZ Music Text <br>CRC Circular reference file (Pro/Engineer) <br>CRC Check file (Win-SFV32) (Fantasia Software) <br>CRD Microsoft Windows 3.x Cardfile <br>CRF Zortech C++ cross-reference <br>CRH Image file (Microsoft Golf) <br>CRP Corel Presents run-time presentation <br>CRP Visual dBASE custom report <br>CRP dBase IV Encrypted database <br>CRS WordPerfect 5.1 for Windows File Conversion resource <br>CRT Certificate file <br>CRT Oracle Terminal settings information <br>CRT Crontab file) <br>CRU CRUSH Compressed archive <br>CSA Comma deliminated text <br>CSC Corel script <br>CSG Statistica/w Graph file <br>CSH C shell script files (Hamilton Labs) <br>CSM Borland C++ 4.5 Precompiled header <br>CSM Script file (Kodak Dc265 Camera) <br>CSO Customer service data and outcome file <br>CSP PC Emcee On-Screen image <br>CSS Stats+ Datafile <br>CSS Statistica/w Datasheet <br>CSS vCascading Style Sheet (MIME) <br>CST Macromedia Director "Cast" (resource) file <br>CSV Comma-separated values file <br>CSV CompuShow Adjusted EGA/VGA Palette <br>CT Scitex CT bitmap <br>CT A graphic file associated with the Paint Shop Pro Graphic Editor <br>CTC PC Installer Control <br>CTF Symphony Character code translation <br>CTL Used in general for files containing control information. FAXWorks<br> uses it to keep information about each fax sent and received. <br>CTL dBase IV Control <br>CTX Visual Basic User control binary file <br>CTX Pretty Good Privacy (PGP) Ciphertext file <br>CTX Microsoft Online Course Text <br>CUE Microsoft Cue Cards data <br>CUL Cursor library file (IconForge) <br>CUR Windows Cursor <br>CURSOR Sun Microsystems Cursor <br>CUT Dr Halo Bitmap <br>CV Corel Versions archive <br>CV Microsoft CodeView information screen <br>CVG Image <br>CVS Canvas drawing file <br>CWK Claris Works data <br>CWS Claris Works template <br>CXT Macromedia Director protected (not editable) "Cast" (resource) fil<br>e <br>CXX C++ source code <br>C-- Sphinx C-- Source code <br>C00 Ventura Publisher Print file <br>C01 Typhoon wave <br>C86 Computer Innovation (C86) Source code <br>＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝<br><br>DAO Windows Registry Backup <br>DAP Data access page (Microsoft Access 2000) <br>DAT Data file <br>DAT A data file extension used to designate an error message in a inbo<br>und internet email message (Microsoft Exchange Server v 5.0) <br>DAT WordPerfect Merge Data <br>DAT Extension used for some MPEG files <br>DB Borderland's Paradox 7 table database <br>DBC Microsoft's Visual FoxPro database container file <br>DBF A dBASE file, a format originated by Ashton-Tate, but understood b<br>y Act!, Clipper,FoxPro, Arago, Wordtech, xBase, and similar database o<br>r database-related products. <br>DBF Enable database (can be opened with Excel 97) <br>DBF Oracle 8.1.x tablespace file <br>DBK dBase Database Backup <br>DBK Schematic backup file (Orcad Schematic Capture) <br>DBO Compiled program file (dBase IV) <br>DBQ Paradox Memo <br>DBT dBase Text Memo <br>DBV Memo field file (Flexfile 2) <br>DBW Microsoft Windows 9.x Database file (DataBoss) <br>DBX DataBeam image <br>DBX Microsoft's Visual FoxPro Table file <br>DC CAD file (DesignCAD) <br>DC2 CAD file (DesignCAD) <br>DCA Document Content Architecture Text file (IBM DisplayWrite) <br>DCA Visual Basic Active designer cache <br>DCF Disk Image file <br>DCF Data file (Dyadic) <br>DCIM Digital Imaging and Communications in Medicine (image and data) <br><br>DCM DCM module <br>DCP Data CodePage (OS/2) <br>DCR Shockwave file <br>DCS Desktop Color Separation file <br>DCS Bitmap Graphics (Quark XPress) <br>DCS Datafile (ACT! Activity file) <br>DCT Microsoft's Visual FoxPro database container file <br>DCT Database Dictionary file (Clarion Database Developer) <br>DCT Database SpellCheck Dictionary (Harvard Graphics 3.0-Symphony) <br>DCU Delphi compiled unit <br>DCX Microsoft's Visual FoxPro database container file <br>DCX Fax image (based on PCX) <br>DCX Macro file <br>DCX Bitmap Graphics file (Multipage PCX) <br>DC5 DataCAD Drawing <br>DD Compressed Archive (Macintosh DISKDOUBLER) <br>DDB Bitmap Graphics file <br>DDF Btrieve or Xtrieve Data Definition File, which contains metadata d<br>escribing a Btrieve or Xtrieve file <br>DDI Image File (DISKDUPE) <br>DDIF Digital Equipment or Compaq file. Used for storing images and the<br>ir word processing documents <br>DDP Device Driver Profile (OS/2) <br>DEB Debug Script (DOS Debug) <br>DEF SmartWare II data <br>DEF Define Module file (3-D Fassade Plus) <br>DEF C++ definition file <br>DEF Assembly Header file (Geoworks) <br>DEFI Oracle 7 de-install script <br>DEM Demo file (Descent) <br>DEM A file with USGS standards for Digital Elevation Models (Vista Pro<br>) <br>DEM Graphics file (Vista Pro) <br>DEP Visual Basic Setup Wizard Dependency file <br>DER Certificate file <br>DEV Device Driver <br>DEWF Macintosh SoundCap/SoundEdit recorded instrument file <br>DEZ Encrypted zip file (DES Encryption) <br>DFD Data Flow Diagram Graphic (Prosa) <br>DFI Outline Font description (Digifont) <br>DFL Default Program Settings (Signature) <br>DFM Data Flow Diagram model (Prosa) <br>DFS Sound File (Delight) <br>DFV Printing Form value (Microsoft Word) <br>DGN Microstation95 CAD drawing <br>DGS Diagnostics Report <br>DH Dependency Information file (Geoworks) <br>DHP Graphic file (Dr. Halo II-III PIC Format) <br>DHT Datafile (Gauss) <br>DIA Diagraph Graphics file (Computer Support Corporation) <br>DIB Device-independent bitmap <br>DIC Dictionary file <br>DIC Dictionary file (Lotus Notes, Domino) <br>DICM Digital imaging and communications in medicine file (DICOM) <br>DIF Data Interchange Format spreadsheet <br>DIF Database file (VisiCalc) <br>DIF Data Interchange Output file <br>DIF Text file (Output from Data Interchange Format) <br>DIG Digilink file <br>DIG Sound Designer I audio <br>DIP Graphics file <br>DIR Macromedia Director file <br>DIR Dialing Directory (ProComm Plus) <br>DIR Directory (VAX) (DEC) <br>DIR Movie (MacroMind Director 4.x) <br>DIS Ray Tracer file <br>DIS Distribution file (VAX Mail) <br>DIS Thesaurus file (CorelDraw) <br>DIZ Description file (Description in ZIP) <br>DKB Graphics file (Ray Traced DKBTrace) <br>DL Image <br>DLD Datafile (Lotus 1-2-3) <br>DLG C++ Dialogue Script <br>DLL Dynamic-link library file <br>DLL Export/Import Filter (CorelDraw) <br>DLS Downloadable sound <br>DLS Interactive music architecture (IMA)(Microsoft),(Blood2) <br>DLS Setup file (Norton DiskLock) <br>DMD Visual dBASE data module <br>DMF Packed Amiga disk image <br>DMF X-Trakker music module (MOD) <br>DMO Demo file (Derive) <br>DMP Dump file (Screen or Memory) <br>DMS Compressed Archive (Amiga DISKMASHER) <br>DOB Visual Basic User document <br>DOC FrameMaker or FrameBuilder document <br>DOC WordStar document <br>DOC WordPerfect document <br>DOC Microsoft Word document <br>DOC DisplayWrite document <br>DOC Document format (Interleaf) <br>DOG Screen Saver file (Laughing Dog Screen Saver) <br>DOH Dependency Information file (Geoworks) <br>DOS External Command file (1st Reader) <br>DOS Network Driver file (PKT_DIS.dos) <br>DOS Text file (DOS) <br>DOT Word Document Template (Microsoft Word for Windows) <br>DOT Line-Type definition (CorelDraw) <br>DOX User document binary form (Visual Basic) <br>DOX Text file (MultiMate 4.x) <br>DOZ Description out of Zip (VENDINFO) <br>DP Calendar file (Daily Planner) <br>DP Datafile (DataPhile) <br>DPL Borland Delphi 3 packed library <br>DPR Project header (Borland C++) <br>DPT Publication file (Publish-It!) <br>DRAW Acorn's object-based vector image <br>DRC Design rules check report file (Orcad Schematic Capture) <br>DRS Display Resource file (Microsoft WordPerfect for Windows) <br>DRV Driver <br>DRV Device Driver (Required to make a device function) <br>DRW Vector graphics (Micrografx) <br>DRW Lotus Freelance Image <br>DRW Pro/E drawing <br>DS4 Micrografx Designer Image <br>DR9 Directory file <br>DS4 Vector Graphics (Micrografx) <br>DSC Discard file (Oracle) <br>DSD Database file (DataShaper) <br>DSF Micrografx Designer v7.x file <br>DSG DooM saved game <br>DSK Project Desktop file (Borland C++/Turbo Pascal) <br>DSK Driver file (Novell Netware) <br>DSM Dynamic Studio music module (MOD) <br>DSM Digital Sound Module (DSI) <br>DSM Music module file (DSIK) <br>DSN ODBC Data source <br>DSN Design (Object System Designer) <br>DSN Schematic file (Orcad Schematic Capture) <br>DSP Microsoft Developer Studio project <br>DSP Display parameters (Signature) <br>DSP Graphics Display driver (Dr. Halo) <br>DSQ Corel QUERY <br>DSR Visual Basic Active designer file <br>DSR Driver Resource (Microsoft WordPerfect for Windows) <br>DSS Screensaver file (DCC) <br>DSS Digital Sound file (Digital Soup)) <br>DST Embroidery machines graphic file <br>DST Distribution file (PC-RDist, by Pyzzo) <br>DSW Desktop settings (Borland C++ 4.5) <br>DSW Microsoft Developer Studio workspace file <br>DSX Visual Basic Active designer binary file <br>DT_ Data file fork (Macintosh) <br>DTA World Bank's STARS data <br>DTA Datafile (Turbo C++) <br>DTD SGML Document Type Definition (DTD) file <br>DTED Digital terrain elevation data (geographic data format) <br>DTF Database file (PFS-Questions &amp; Answers) <br>DTF Symantec Q&amp;A relational database <br>DTM Module file (DigiTrakker) <br>DTP Desktop layout file (SecurDesk!/SecurDesk! LV) <br>DTP Text Document (Timeworks Publisher 3.x) <br>DTP Template file (Pressworks) <br>DUN Microsoft Dial-up Networking Export file <br>DUP Duplicate Backup <br>DV Digital video (MIME) <br>DVC Datafile (Lotus 1-2-3) <br>DVF Graphics file associated with camcorders (DV Studio) <br>DVI Binary file (TeX) <br>DVI Device Independent Document (TeX) (LaTeX) <br>DVP Desqview Program information (DESQview) <br>DVP Device parameter file (AutoCAD) <br>DW2 Drawing file (DesignCAD for Windows) <br>DWC Compressed Archive (DWC) <br>DWD DiamondWare digitized file <br>DWF Vector graphic (Autodesk) <br>DWF Drawing Web file (Microsoft WHIP autoCAD reader) <br>DWG AutoCAD Drawing <br>DWG AutoCAD drawing, or older Generic CAD drawing file <br>DWP Document file (DeScribe) <br>DWS Workspace file (Dyadic) <br>DX Digital Electric Corporation (DEC) Data exchange file <br>DXF Drawing Interchange (eXchange) format,a text representation of the<br> binary DWG format <br>DXF Drawing Interchange Format (AutoCAD) <br>DXF Data Exchange File <br>DXN Fax document (Fujitsu dexNet) <br>DXR Macromedia Director protected (not editable) movie file <br>DYN Datafile (Lotus 1-2-3) <br>D2D 2D/3D object file (3-D Fassade Plus) <br>D64 Commodore 64 emulator disk image <br>＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝<br><br>e00 Exchange file (Arc/Info) <br>EBJ Error Checking Object file (Geoworks) <br>ED5 EDMICS image <br>ED6 EDMICS image <br>EDA Ensoniq ASR disk image <br>EDB ROOTS3 Geneological data file <br>EDE Ensoniq EPS disk image <br>EDD Element Definition document (FrameMaker+SGML documents) <br>EDK Ensoniq KT disk image <br>EDQ Ensoniq SQ1/SQ2/KS32 disk image <br>EDS Ensoniq SQ80 disk image <br>EDT Default settings (VAX Edt editor) <br>EDV Ensoniq VFX-SD disk image <br>EEB Button Bar for Equation editor (Microsoft WordPerfect for Windows)<br><br>EFA Ensoniq ASR file <br>EFE Ensoniq EPS file <br>EFK Ensoniq KT file <br>EFQ Ensoniq SQ1/SQ2/KS32 file <br>EFS Ensoniq SQ80 file <br>EFT High Resolution Screen Font (ChiWriter) <br>EFV Ensoniq VFX-SD file <br>EFX Fax Document (Everex EFax) <br>EFX Fax document (Efax Reader) <br>EGA EGA Display font (Ventura Publisher) <br>EL Lisp Source code (eMacs) <br>ELC eMac Lisp Source code (byte-compiled) <br>ELM Theme-Pack file for (Microsoft FrontPage) <br>ELT Event List Text file (Prosa) <br>EMB Embedded bank File (Everest) <br>EMD ABT Extended MoDule <br>EMF Enhanced Windows Metafile <br>EML Microsoft Outlook Express mail message (MIME RFC 822) <br>EMS Enhanced Menu System Configuration file (PC Tools) <br>EMU Terminal Emulation Data file (BITCOM) <br>ENC Music file (Encore) <br>ENC Video file <br>ENC Encoded file (UUENCODEd File, Lotus 1-2-3) <br>END Arrow-Head Definition Table (CorelDraw) <br>ENFF Neutral Format <br>ENG Dictionary Engine file (Sprint) <br>ENG Chart Graphics file (EnerGraphics) <br>ENV Enveloper Macro (WOPR) <br>ENV Environment file (Microsoft WordPerfect for Windows) <br>EPD Publication file (Express Publisher) <br>EPHTML Enhanced Perl-parsed HTML <br>EPI Document file (Express Publisher) <br>EPS Encapsulated Postscript Vector graphics (Adobe Illustrator) <br>EPS Printer font (Epson, Xerox, Ventura Publisher) <br>EPS2 Adobe Level II Encapsulated Postscript <br>EPS Encapsulated Postscript image file <br>EPSF Encapsulated PostScript <br>EPSI Adobe Encapsulated Postscript Interchange <br>EQN Equation file (Microsoft WordPerfect for Windows) <br>ER1 ERWin file <br>ERD Entity Relationship Diagram graphic file (Prosa) <br>ERM Entity Relationship Diagram Model file (Prosa) <br>ERR Stores the error messages that result when the RoboHELP Help Compi<br>ler attempts to compile the source files of a Help system <br>ERR Compilation error file (Microsoft Visual FoxPro) <br>ERX ERWin file <br>ESH Extended Shell Batch file (DOS) <br>ESL Distributable support library file (Microsoft Visual FoxPro) <br>ESPS ESPS audio file <br>ETH Document file (Ethnograph 3.x) <br>ETX Structure Enhanced text (SetText) <br>EUI Ensoniq ESP family compacted disk image <br>EVT Event Log (Microsoft Windows NT, 2000) <br>EVY Document (Microsoft Wordperfect for Windows Envoy) <br>EWD Text Document (Express Publisher for Windows) <br>EWL Microsoft Encarta document <br>EXT2 Second extended file system (Linux) <br>EXT3 Third extended file system (Linux) <br>EX3 Device Driver file (Harvard Graphics 3.x) <br>EXC Microsoft Word Exclusion Dictionary file <br>EXC Source Code file (Rexx VM/CMS) <br>EXC Exclude file for Optimize (do not process, QEMM) <br>EXE Executable file (program) <br>EXP Saved chat (ICQ) <br>EXT ASCII binary transfer file (WS_FTP PRO) (IPSWITCH Software) <br>EZP Compressed file (Edify.zip) (Edify Electronic Workforce Backup Uti<br>lity) <br>E00 Coverage export file (ArcInfo) <br>＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝<br><br>F FORTRAN file <br>F Compressed file archive (FREEZE) <br>FAC Face graphic <br>FAQ Frequently Asked Questions document <br>FAR Music module (MOD) (Farandole Composer) <br>FAS Basic module file (3-D Fassade Plus) <br>FAV Navigation bar (Microsoft Outlook) <br>FAX FAX Type image <br>FBK Backup (Navison Financials) <br>FC Spell Check dictionary file (Harvard Graphics) <br>FCD Virtual CD-ROM file <br>FCM Binary file patch (Forward Compression) <br>FD Declaration file (FORTRAN) <br>FD Field offsets for compiler (DataFlex) <br>FDB Database (Navison Financials) <br>FDF Forms Document (Adobe Acrobat) <br>FDW Document form (F3 Design and Mapping) <br>FEB Button Bar for Figure Editor (Microsoft WordPerfect for Windows) <br><br>FEM CADRE Finite Element Mesh <br>FF Outline Font description (AGFA CompuGraphics) <br>FFA MS find fast file <br>FFF Fax document (defFax) <br>FFF GUS PnP bank file <br>FFL MS fast find file <br>FFL Image file (PrintMaster Gold) <br>FFO MS fast find file <br>FFT Final Form Text (part of IBM's DCA) <br>FFX MS fast find file <br>FH3 Aldus Freehand 3 drawing (Vector graphic) <br>FH4 Aldus Freehand 4 drawing (Vector graphic) <br>FI File Interface (FORTRAN) <br>FIF Fractal Image <br>FIG REND386/AVRIL file <br>FIL File template (Application Generator) <br>FIL File List Object (dBase Application Generator) <br>FIL Overlay (Microsoft WordPerfect for Windows) <br>FIN Print formatted text (Perfect Writer) <br>FIT Graphic (FITS) <br>FIT File index table (Microsoft Windows NT) <br>FITS CCD camera image <br>FITS Flexible Image Transport System file <br>FIX Patch file (Generic) <br>FKY Macro (Microsoft FoxPro) <br>FLA Movie (Macromedia Flash) <br>FLB Format library (Papyrus) <br>FLC FLIC animation (AutoDesk) <br>FLD File folder (Charisma) <br>FLD Field define module file (3-D Fassade Plus) <br>FLF Delived form (Corel Paradox) <br>FLF License (Navison Financials) <br>FLI FLIC animation (AutoDesk) <br>FLI Font library (EmTeX) <br>FLF Driver (OS/2) <br>FLL Distributable dynamic link library (DLL) (Microsoft Visual FoxPro)<br><br>FLM Film Roll (AutoCAD) <br>FLO FlowCharter file (MicroGrafx) <br>FLS Filelist document (Farrukh Imposition Publisher) <br>FLT Graphics filter (Microsoft) <br>FLT Filter (Corel) <br>FLT Filter (Micrografx Picture Publisher) <br>FLT Graphics filter support file (Asymetrix ToolBook) <br>FLT Music module (MOD) (StarTrekker) <br>FLT Open Flight file (MulitGen) <br>FLX Compiled binary file (DataFlex) <br>FM Spreadsheet (FileMaker Pro) <br>FM FrameMaker Document (Adobe) <br>FM1 Spreadsheet (Lotus 1-2-3, version 2.x) <br>FM3 Device driver (Harvard Graphics, version 3.0) <br>FM3 Spreadsheet (Lotus 1-2-3, version 3.x) <br>FMB Binary source code for form, (Oracle, v4.x and later) <br>FMB File Manager button bar (Microsoft WordPerfect for Windows) <br>FMF Font or Icon (IBM LinkWay) <br>FMK MakeFile (FORTRAN PowerStation) <br>FML Mirror list (Oracle) <br>FMO Compiled format (dBase IV) <br>FMP Document file (FileMaker Pro) <br>FMT Text format for form file (Oracle, v4.x and later) <br>FMT Print file (Microsoft Schedule+) <br>FMT Style sheet (Sprint) <br>FMT Csreen format file (Microsoft Visual FoxPro) <br>FMX Executable form, (Oracle,v4.x and later) <br>FN3 Font (Harvard Graphics) <br>FND Saved Search (Find applet) (Microsoft Explorer) <br>FNG Font group (Font Navigator) <br>FNK Module (FunkTracker) <br>FNT Font (Generic) <br>FNX Inactive font (Exact) <br>FO1 Font (Borland Turbo C) <br>FO2 Font (Borland Turbo C) <br>FOG Fontographer font <br>FOL Saved message folder (1st Reader) <br>FON Font (Generic) <br>FON Call log (Procomm Plus) <br>FON System font (Generic) <br>FON Dialing directory (Telix) <br>FOR FORTRAN source code <br>FOR Form (WindowBase) <br>FOT Font-related file (Generic) <br>FOT Installed TrueType font (Microsoft Windows Font Installer) <br>FP Configuration file (FoxPro) <br>FP FileMaker Pro file <br>FP1 "Flying Pigs" screensaver datafile (Microsoft Windows 9.x) <br>FP3 FileMaker Pro v.3 &amp; 4 document file <br>FP5 Document file (FileMaker Pro v.5) <br>FPC Catalog file (FoxPro) <br>FPT FileMaker Pro file <br>FPT Memo fields (Microsoft FoxPro) <br>FPW Floorplan drawing (FloorPlan Plus for Windows) <br>FPX Bitmap (FlashPix) <br>FR3 Renamed dBaseIII+ form (dBase IV) <br>FRF Font (FontMonger) <br>FRG Uncompiled report (dBase IV) <br>FRK Zip (compressed ) file (Macintosh) <br>FRM Form (Generic) <br>FRM Document (FrameMaker or FrameBuilder) <br>FRM Executable file (Oracle,v3.0 and earlier) <br>FRM Form (Visual Basic) <br>FRM Merge form (Microsoft WordPerfect for Windows) <br>FRM Symbol Report (DataCAD) <br>FRO Compiled report (dBase IV) <br>FRP Form (PerForm PRO Plus) <br>FRS Screen Font Resource (Microsoft Wordperfect for Windows) <br>FRT Report menu (FoxPro) <br>FRX Form stash file (Visual Basic) <br>FRX Report (Microsoft FoxPro) <br>FSF fPrint Audit Tool <br>FSL Paradox 7 form (Borderland) <br>FSL Form (Paradox for Windows) <br>FSL Saved form (Corel Paradox) <br>FSM Sample file (Farandoyle) <br>FST Linkable program (dBFast) <br>FSX Data (Lotus 1-2-3) <br>FT Full text index (Lotus Notes) <br>FTB Index file (Roots3) <br>FTF Client access data specification file (AS/400) (Client to Server) <br><br>FTG Help system full-text search group file (Microsoft Windows) <br>FTM Font (MicroGrafx) <br>FTP File transfer protocol (Internet Generic) <br>FTS Help system full-text search index (Windows) <br>FTW Document file (Family Tree Maker) <br>FW Database (Framework II) <br>FW2 Database (Framework II) <br>FW3 Database (Framework III) <br>FW4 Database (Framework IV) <br>FWB Data file backup for file splitting configuration (FileWrangler) <br><br>FWS Data file for file splitting configuration (FileWrangler) <br>FX On-Line guide (FastLynx) <br>FXD Phonebook (FAXit) <br>FXP Compiled source code (FoxPro) <br>FXS Fax Transmit graphic (WinFax) <br>FZB Bank dump file (Casio FZ-1) <br>FZF Full dump file (Casio FZ-1) <br>FZV Voice dump file (Casio FZ-1) <br>F01 Fax document (Perfect Fax) <br>F06 Dos screen text font (height= 6 pixels) <br>F07 Dos screen text font (height= 7 pixels) <br>F08 Dos screen text font (height= 8 pixels) <br>F09 Dos screen text font (height= 9 pixels) <br>F10 Dos screen text font (height= 10 pixels) <br>F11 Dos screen text font (height= 11 pixels) <br>F12 Dos screen text font (height= 12 pixels) <br>F13 Dos screen text font (height= 13 pixels) <br>F14 Dos screen text font (height= 14 pixels) <br>F15 Dos screen text font (height= 15 pixels) <br>F16 Dos screen text font (height= 16 pixels) <br>F2R Linear music module (Farandole) <br>F3R Blocked music module (Farandole) <br>F77 Source code file (FORTRAN 77) <br>F90 FORTRAN file <br>F96 Fax document (Frecom FAX96) <br>＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝<br><br>G Data chart (APPLAUSE) <br>GAL Album (Corel Multimedia Manager) <br>GAM Fax document (GammaFax) <br>GB Emulator ROM image file (Nintendo GameBoy) <br>GBC Color emulator ROM image file (Nintendo GameBoy) <br>GBL Global definitions (VAXTPU Editor) <br>GC1 Lisp source code (Golden Common Lisp 1.1) <br>GC3 Lisp source code (Golden Common Lisp 1.1) <br>GCD Generic (TM) CADD drawing (later versions) <br>GCP Image processing file (Ground Control Point) <br>GDB Database file (InterBase) <br>GDF Dictionary file (GEOS) <br>GDM Bells, whistles, and sound boards module <br>GED Genealogical data (GEDCOM) <br>GED Graphic Environment Document (drawing) <br>GED Graphics editor native format (Arts &amp; Letters) <br>GED Graphics editor file (EnerGraphics) <br>GEM Metafile (GEM) <br>GEM Vector graphics (Ventura Publisher) <br>GEN Generated text (Ventura Publisher) <br>GEN Compiled template (dBase Application Generator) <br>GEO Geode (Geoworks) <br>GetRight Unfinished-Download (GetRight) <br>GFB Compressed gif image (GIFBLAST) <br>GFC Patton&amp;Patton Flowcharting 4 flowchart <br>GFI Graphics Link presentation (Genigraphics) <br>GFT Font (NeoPaint) <br>GFX Genigraphics Graphics Link presentation <br>GIB Chart (Graph-in-the-Box) <br>GID Windows 95 global index (containing help status) <br>GIF Bitmap (CompuServe) <br>GIM Graphics Link presentation (Genigraphics) <br>GIW Presentation (Graph-in-the-Box for Windows) <br>GIX Graphics Link presentation (Genigraphics) <br>GKH Ensoniq EPS family disk image <br>GKS GripKey document (Gravis) <br>GL Animation file (GRASP graphical System for Presentation) <br>GLM Datafile (Glim) <br>GLS Datafile (Across) <br>GLY Glossary (Microsoft Word) <br>GMF CGM Graphics (APPLAUSE) <br>GMP Tile map (Geomorph) (SPX) <br>GMR Graphical monitor record (Schlafhorst Automation) <br>GNA Graphics Link presentation (Genigraphics) <br>GNO Genealogy document file (Genopro) <br>GNT Generated executable code (Micro Focus) <br>GNX Graphics Link presentation (Genigraphics) <br>GOC Goc sorce code (Geoworks) <br>GOH Goc header (Geoworks) <br>GP Geode parameter file (Geoworks Glue) <br>GPH Graph (Lotus 1-2-3/G) <br>GPK Program package (Omnigo) <br>GPP Graph paper application file (GraphPap) (Generates graph paper) <br>GR2 Screen driver (Microsoft Windows 3.x) <br>GRA Graph (Microsoft) <br>GRA Datafile (SigmaPlot) <br>GRB Shell Monitor (MS-DOS v5.0) <br>GRD Image processing grid (CHIPS) <br>GRF Grapher (Golden Software) graph <br>GRF Graph (Charisma Graph Plus) <br>GRP Program Manager Group (Microsoft) <br>GRP Pictures group (PixBase) <br>GRY Raw graphic (GREY) <br>GS1 Presentation (GraphShow) <br>GSD Vector graphic (Professional Draw) <br>GSM Audio stream Raw GSM (6.10 audio stream) <br>GSM Audio stream Raw 'byte aligned (GSM 6.10 audio stream) <br>GSM GSM w.o. header/VoiceGuide/RapidComm file (US Robotics voice modem<br>s) <br>GSM GSM w. header/QuickLink file (US Robotics voice modems) <br>GSP Sketch pad file (GeoMeter Sketch Pad) <br>GSP Zip file (Gnuzip) (Allows for output to html) <br>GSW Worksheet (GraphShow) <br>GTK Music module (Graoumftracker) (old) (MOD) <br>GT2 Music module (Graoumftracker) (new) (MOD) <br>GUP Data (PopMail) <br>GWP Greetings WorkShop file <br>GWX Graphics Link presentation (Genigraphics) <br>GWZ Graphics Link presentation (Genigraphics) <br>GXL Graphics library (Genus) <br>GZ Compressed file (Unix gzip) <br>G721 Raw CCITT G.721 //$bit ADPCM data <br>G723 Raw CCITT G.723 3 or 5bit ADPCM data <br>G8 Raw Graphics (one byte per pixel) Plane III (PicLab) <br>＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝<br><br>H Program header (C) <br>HA Compressed archive (HA) <br>HAM Driver file (Novell Netware) <br>HAM Vector graphics saved file (Amiga) <br>HAP Compressed archive (HA) <br>HBK Handbook (MathCad) <br>HBK Accounting data file (Humanic Software) <br>HCM Configuration file (IBM HCM) <br>HCOM Sound Tools file (HCOM) <br>HCR Production configuration file (IBM HCD/HCM) <br>HDF National Center for Supercomputing Applications (NCSA) Geospatial <br>Hierarchical Data <br>HDF Help file (Help development kit) <br>HDL Alternate download listing (ProComm Plus) <br>HDR Database header (Pc-File+) <br>HDR Datafile (Egret) <br>HDR Message header text (ProComm Plus) <br>HDR Message header text (1st Reader) <br>HDW Vector graphics (Harvard Draw) <br>HDX Help index (AutoCAD) <br>HDX Help index (Zortech C++) <br>HED Document (HighEdit) <br>HEL Hellbender saved game (Microsoft) <br>HEX Macintosh BinHex 2.0 file <br>HFI HP font info (GEM) <br>HGL Drawing file (HP Graphics Language) <br>HH Help system map (Generic) <br>HH Header file (C++) <br>HHH Precompiled header (Power C) <br>HHP Help information for remote users (ProComm Plus) <br>HIT Audio file (HitPlayer) <br>HLB Help library (VAX) <br>HLP Help file (Generic) <br>HLP Windows Help file (DataCAD) <br>HMI Human machine interfaces MIDI music file (Descent) <br>HMM Alternate mail read option menu (ProComm Plus) <br>HMP Human machine interfaces MIDI music file (Descent) <br>HNC Program files (CNC) <br>HOG Lucas Arts Dark Forces WAD file <br>HOG Mission file (Descent 1-2) <br>HOG Main data package file (Descent3) <br>HOT Document file (HotSend) <br>HP8 Ascii text Roman8 character set (NewWave Write) <br>HPC Font language file (Hewlett-Packard) <br>HPF HP LaserJet font (Adobe Pagemaker) <br>HPF Partial download file (HotLine) <br>HPG HPGL Plotter vector graphics (AutoCAD) <br>HPG HPGL Plotter vector graphics (Harvard Graphics) <br>HPI Font information (GEM) <br>HPJ Help Project file (Visual Basic) <br>HPK Compressed archive (HPACK) <br>HPM Emm text (HP NewWave) <br>HPM Alternative menu for privileged users (ProComm Plus) <br>HPP Program header (C++) <br>HPP Header file (Zortech C++) <br>HQX BinHex (Macintosh 4.0) <br>HRF Rastor graphic (Hitachi) <br>HRM Alternate menu for limited users (ProComm Plus) <br>HS2 Monochrome image (Postering) <br>HSC FM synthesized music file (Used by many old games, e.g.:FINTRIS, R<br>OL) <br>HSI Graphic (Handmade Software, Inc.) <br>HST History file (Generic) <br>HST History file (ProComm Plus) <br>HT HyperTerminal file <br>HTA A HTML file that has been used to by viruses to update the system <br>registry <br>HTM A Web page (a file containing Hypertext Markup Language - HTML - m<br>arkup) <br>HTML A Web page (a file containing Hypertext Markup Language - HTML - <br>markup) <br>HTT Hypertext template (Microsoft) <br>HTX Template (Extended HTML) <br>HWD Presentation (Hollywood) <br>HWP Korean word processor document format (HanGul) <br>HXM HAM extension (Descent2) <br>HXM Alternate protocal selection menu (ProComm Plus) <br>HXX Header file (C++) <br>HY1 Hyphenation algorythm (Ventura Publisher) <br>HY2 Hyphenation algorythm (Ventura Publisher) <br>HYC Datafile (Microsoft WordPerfect for Windows) <br>HYD Hyphenation dictionary (Microsoft WordPerfect for Windows) <br>HYM 3D Image binary file (Hymarc Scandata Scanner) <br>HYP Compressed archive (HYPER) <br>H! On-line Help (Flambeaux Help!) <br>H++ Header file (C++) <br>H-- Header file (Sphinx C--)</p>