A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Num Sym
.??_ Files ending in "_" are often compressed install files of the same name (e.g., .EX_ expands to .EXE, .DL_ expands to .DLL, etc.) .C C Program File [Note: Some UNIX compilers use .c (lower case) for C and .C (upper case) for C++] Check Point Site Configuration for Secure Remote UNIX Compact File Achive Desktop Color Separation Specification Cyan Layer (usually an EPS file) ADS Source Code File Origin C Program File (Origin is scientific graphing and data analysis software.) .C?? WinAce Compressed File (open with WinRAR) .C++ C++ Source Code .C-- Sphinx C-- Source .C00 Ventura Print File .C01 Typhoon Wave File (unverified - may just be one of a string of compressed files [see .C??]) .C08 Lord Of Destruction Game File (unverified - may just be one of a string of compressed files [see .C??]) .C13 Charlie Packer [Unverified] Lossless .WAV compression. Program no longer available. .C2D IsoBuster File WinOnCd CD Image .C3D Chem3D Chemical File Cult3D Designer Intermediate File (interactive 3D objects) .C3T Chem3D Chemical Template File .C4 JEDMICS (Joint Engineering Data Management) DoD Engineering Data Format [For-pay Viewer] Edmics [XnView] .C4D Cinema 4D (3D Modeling texturing and animation program) .C6 Ashlar-Vellum File .C64 Commodore 64 Game ROM [Use CCS64 Emulator] .C86 C86 C Program .C-- Sphinx C-- Source code .CA Telnet Server Initial Cache Data File DATAIR FlexPlus Data File .CA1 OzWin CompuServe E-mail/Forum Access Catalog File STABCAL (stability calculation for aqueous systems) File .CA2 STABCAL (stability calculation for aqueous systems) File .CA4 Electronics Workbench Circuit STABCAL (stability calculation for aqueous systems) File .CA7 Beta 44 Job File STABCAL (stability calculation for aqueous systems) File .CAB Cabinet File (Microsoft installation archive) Install Shield v5.x or 6.x Compressed File (not compatible with Microsoft .CAB files) .CAC dBase IV Executable File .CAD Softdesk Drafix CAD File .CAF Southern Company Terrestrial Data Acq .CAG Microsoft Clip Gallery Catalog File .CAJ CAJViewer (Chinese reader similar to Adobe Acrobat Reader) (Chinese site) .CAL SuperCalc Worksheet Calendar File HTML Calendar Maker Pro DOS Calendar Creator File Cals Raster File [SwiftView] Radiance Function File Format CALS Raster [XnView] Microsoft Schedule Data Cakewalk Application Language Script (An event-processing language that you use to extend Pro Audio and Professional with custom editing commands.) HP PhotoSmart 850 Digital Camera Firmware Update (also associated with .FWI file) .CALS CALS Raster [XnView] .CAM Casio QV Digital CAMera Image [XnView] [IrfanView] Camtasia Project/Producer Files (screen recording editor) Sierra NASCAR Racing 2002 Replay Camera Settings .CAN Canon Navigator Fax [XnView] .CAP Ventura Caption Network Associates Sniffer Capture File Agilent LAN Analyzer Capture File Fluke Protocol Inspector Capture File Microsoft NetMon Capture File Shomiti Surveyor Capture File Sun Snoop Capture File TTC FireBerd 500 PC Capture File WWG Domino Capture File WWG LinkView PRO Capture File Telix Session Capture Compressed Music File .CAPS Visimetrics Digital CCTV Recording (series of JPEG images) .CAR AtHome Assistant File Carrara Environment NeoBook Cartoon [XnView] Viper Racing Car Description File Insight II Cartesian Coordinate File Sierra NASCAR Racing 2002 Car Description File Broderbund American Greetings CreataCard .CAS Comma-delimited ASCII File i2's Case Notebook Timeline Analysis Casio Program Cascade DTP File (desktop publishing for browsers using CSS technology) .CAT dBase Catalog Microsoft Security Catalog (distributed with drivers and updates to assure file integrity) Todd Osborne Directory Catalog Quicken IntelliCharge Categorization File Cognos Impromptu Database Report OzWin CompuServe E-mail/Forum Access Catalog File Photomatrix PhotoStudio Graphic [XnView] .CATPART CATIA (integrated suite for product design) .CATPRODUCT CATIA (integrated suite for product design) .CAZ Computer Associates Archive .CB Microsoft Clean Boot File Crystal Button File Brief Macro Source Code COMBAS Source Code .CB3 CliBench Mk III SMP 0.7.10 (measure system performance) .CBC CubiCalc Fuzzy Logic System File .CBF Calendar Builder File Infinity Game Engine Archive of Resources (indexed by .KEY file - Icewind Dale only) [More Info] .CBH ChessBase Chess Database File .CBI IBM Mainframe Column Binary Formatted File .CBK National Construction Estimator 32 Costbook Corex Technologies CardScan Backup File .CBL COBOL Program (also see .COB) Contextual Browsing Language Viewer (usually JavaApplet) Liant RM/COBOL Development System Source File (Compiles RM/COBOL applications) .CBM XLib Compiled Bitmap Fuzzy Bitmap [XnView] .CBO COMBAS Object File / Compiled Program .CBP CentraBuilder File (web editing) [Expected availability Sep 2002] .CBS Cardbox Macro Script (database program) .CBT Computer Based Training .CBV ChessBase Archive File .CBW Cardbox Workspace (database program) .CC C++ Program File Visual dBASE Custom Class File dB2K Custom Class File Picture Window's Color Curve File (ASCII text file) ADS Source Code File .CC1 Chem3D Cartesian Coordinates 1 Briggs Softworks Calendar Commander .CC2 Chem3D Cartesian Coordinates 2 ClubControl 2 (Internet cafe management/administration - Russian link) .CC5 Calendar Creator 5.x 6.x File .CCA CC:Mail Archive File Multimedia Fusion File (multimedia game creation - Clik N Create, The Games Factory can open some) .CCB Visual Basic Animated Button Configuration .CCC Microsoft Internet Chat Curtain Call Native Bitmap Graphic WordPerfect Office Calendar File (CALENDAR.CCC) .CCD CloneCd Control File [Fantom CD Emulator] Vector CAD Program File .CCE Calendar Creator 2 Event File .CCF OS/2 Multimedia Viewer Configuration File Symphony Communications Configuration File Remote Control File (various to include: ProtoProEdit, RAVedit) AudioReQuest Control File Hallmark Card Studio File Cannondale Motorcycle ECM System Engine Calibration File .CCH Corel Chart Fabasoft Components PhotoModeler (Photogrammetry software) Forgotten Realms Unlimited Adventures (FRUA) Character Reference File [Fan Site] .CCL Intalk Communication Command Language .CCM Lotus CC:Mail Mailbox .CCN Vitalize! Game File [Played via IE plug-in] IMSI Multimedia Fusion Express File (Product dropped; was Click 'n Create game creation file) [Support site] .CCO CyberChat Data File XBTX BTX Graphics File MicroSim PCBoard Autorouter Session Output .CCP C Converter Profiles (construction site management) CalComp Color Palette File CaptureCAM-PRO Screen Recording .CCPR CaptureCAM-PRO .CCR Microsoft Internet Chat Room Shortcut .CCS CONKY CeZaR Stribas International .CCT Macromedia Director Shockwave Cast Logic Works Schematic File SIL Hebrew Font System Transliteration Table MicroSim PCBoard Design Information and Rules For Autorouting .CCX Corel Compressed Exchange File .CD cdTree Content List IsoBuster File .CD1 DATAIR Cafeteria Document System Data File .CD2 DATAIR Cafeteria Document System Custom Text File .CDA CD Audio Track .CDB Turbo C Database Clipboard File One Page from a ROM With a View Project File CardScan Database Nokia 9210/9290 Contact Database (Nokia runs Symbian) SymbianOS Contact Database File PowerDesigner Conceptual Model Backup File .CDBK SPSS Database File [PSPP Free Version Info] .CDC Chromeleon Driver Configuration Plugin Nero File (CD burning/design software) .CDD Chromeleon Device Driver Claris Draw v 1.2 Document Concept Draw (vector drawing for Macintosh and PC) .CDDA AIFF Audio File [Play with Quicktime] .CDE Honeywell Hybrid Control Designer (HC900-x Industrial Controllers) CADKEY Dynamic Extension (Add-on module for CADKEY products) .CDF Comma Delimited Format Cyberspace Description Format Microsoft Channel Definition Format InstallShield Components Definition File NetCDF Graphic File MicroSim PCBoard Component Description File For Bill Of Materials .CDG DART Karaoke Studio CD+G File (contain only song lyrics and synchronization data) .CDI Phillips Compact Disk Interactive Format [IsoBuster Data Recovery Tool] Disc Juggler File (CD-ROM data) .CDJ Disc Juggler File (CD-ROM data) .CDK Atari Calamus Document .CDKEY Protocol Used in Communicating from MediaRemote Server to PC MediaRemote Plug-in (ASCII text) .CDL CaseWare Working Papers Document Link SignLab Vector Graphic CADKEY Advanced Design Language (CADL) (CADKEY's scripting/macro language, also used for export to some CAM programs.) .CDM PowerDesigner Conceptual Model File Visual dBASE Custom Data Module Compressed Music Format (unverified) .CDO Cdo Navigator (Analyzes financial portfolios) .CDP CD/Spectrum Pro .CDQ CD Indexer .CDR Corel Vector Graphic Drawing [XnView] Raw Audio-CD Data Sound File [Linux Player] .CDS ChemDraw Stationery Document .CDT Corel Draw Template STABCAL (stability calculation for aqueous systems) File ProWORX Nxt Temporary Long Comment Data (Found in the NxT directory) .CDU CDU Paint [XnView] .CDW CeledyDraw Image CADKEY Organized Dialog File .CDX Compound Index [File Structure] Corel Draw Compressed Drawing Microsoft Visual Foxpro Index Active Server Document ChemDraw Chemical Structure Microstation Cell Library Index .CDXL Old Amiga Movie Format .CDXML ChemDraw XML ChemDraw Format .CDZ ROM With a View Project File .CE FarSide Computer Calendar File Computer Eyes, Digital Vision [XnView] .CE1 Computer Eyes, Raw [XnView] .CE2 Computer Eyes, Raw [XnView] .CE3 Calendar Creator 3.x 4.x Event List .CEG Continuous Edge Graphic Tempra Show Bitmap Graphic or Edsun Continuous Edge Graphic .CEI CRiSP Harvest File .CEL Autodesk Animator Graphic CIMFast Event Language File Kiss Paper Doll File Microstation Cell Library Kiss Cel [XnView] Lumena CEL [XnView] .CEM Empire Earth Game File .CEN Master Tracker Financial Analysis .CEO Extension associated with Winevar Worm (The worm sets .CEO as an executable extension so future files arriving with this extension will be automatically run.) .CER Certificate File Sierra Print Artist Certificate .CEV Software License Tracking Tool (CERTAUTH.CEV) LOUT Character Encoding File (High-Level Language For Document Formatting) .CEX The Currency Exchanger Rate File INMOS Transputer Development System Occam User Program ThumbsPlus File (Progressive Multi-image JPEG file) .CF Imake Configuration File Sendmail Configuration File [Other configuration files as well] .CF4 Catfish File Manager Support File .CFB Comptons Multimedia File .CFC Cold Fusion File .CFF Capabilities File for FOUNDATION(tm) Fieldbus H1 (31.25 kbit/s) .CFG Configuration (various) .CFH Capabilities File for FOUNDATION(tm) Fieldbus HSE (100 Mbit/s) .CFL Corel Flowchart File .CFM Corel FontMaster Cold Fusion Template File Visual dBASE Windows Customer Form .CFML Cold Fusion Markup Language .CFN Atari Calamus Font Data File .CFO TCU Turbo C Utilities C Form Object .CFP Complete Fax Portable Fax File .CFR IBM Configurator Report (if you don't have the program ask the sender to export to .RTF for you) .CFT Cumberland Family Tree .CFW ChemFinder Form .CFX Flow-Cal File (natural gas measurement) .CG3 Dungeons & Dragons Character File [Editor] .CGA Ventura CGA Screen Characters .CGF ProWORX Nxt CODEGEN Batch File (For automating macro insertions - Found in the NxT directory) .CGI Common Gateway Interface Script .CGM Computer Graphics Metafile .CGP NetCaptor CaptorGroup .CH Clipper Header OS/2 Configuration File .CH3 Harvard Chart (Harvard Graphics taken over by Serif) .CH4 Charisma 4.0 Presentation .CHA Adobe Pagemaker Kerning Data .CHAT PIRCH98 Chat File .CHD Ares FontChameleon Font Descriptor ChartFX File .CHF pcAnywhere Remote Control File .CHI Chiwriter Document Help File Index (typically used when the Help file will stay on a CD-ROM -- .CHI speeds access to the info) .CHJ Help Composer Project .CHK CHKDSK/SCANDISK Output WordPerfect Temp File Sophos Intercheck File Starcraft Campaign Map .CHL Chromeleon Channel Raw Data Configuration History Log IE Channel Information .CHM Compiled HTML Help ChemDraw Chemical Structure (old format) .CHN Ethnograph Data File .CHO Hash Animation:Master Choreography Mussoft Chord Pro Song Format .CHOPRO Mussoft Chord Pro Song Format .CHP Ventura Publisher Chapter .CHQ Help Combined Full-text Search File (produced when multiple .CHM files are merged) .CHR Character or Font File Infinity Game Engine Exported Character Info [More Info] .CHS Corel WP Chart Style ATI Radeon Video Driver File .CHT Cheat Machine Data File ChartViewer dBase Interface File Harvard Graphics Vector File (Harvard Graphics taken over by Serif) ChartFX Template File Novagraph Chartist File (Flowcharting, Organization Charting) ZSNES Cheat Code (Super Nintendo emulator) ICQ Saved Chat Session Generations Family Tree Chart .CHU Infinity Game Engine GUI Elements File (list of windows and window controls) [More Info] .CI CitectSCADA File .CIF Ventura Chapter Information CalTech Intermediate Graphic Easy CD Creator Image [IsoBuster Data Recovery Tool] pcAnywhere Caller File Ventura Converted Image File Colombo Ipermedia File Chip Layout Information Crystallographic Information File .CIG Fastback Plus Compressed Backup [Data Recovery Company] .CIL Clip Gallery Download Package .CIM SimCity 2000 File CompuApps Drive Backup Image CIMEX Cimpack Design Drawing File GE Industrial Systems CIMPLICITY HMI Screen (CIMPLICITY is GE Fanuc's Human Machine Interface product) .CIN OS/2 Change Control File Cinetitler Digital Screen Subtitling Kodak Cineon [XnView] Photo-Sonics Picture Sequence [Edit with FalCon eXtra] .CIP Ghost Keylogger File .CIR SuperMax E-CAD Save-File Command PSpice File Flash Color Table .CIS CheckInbox File .CIT Intergraph Scanned Image [XnView] .CIV Empire Earth Custom Civilization Information .CIX TCU Turbo C Utilities Database Index .CK1 iD/Apogee Commander Keen 1 Data File (.CK1 to .CK6) .CKB Borland C++ Keyboard Mapping File .CKD CADKEY Design File (ver 20 and above) [Viewer] .CKP Ingres Checkpoint File .CKT Crocodile Clips (Electronic design/physics) CADKEY Template File .CL Generic LISP Source Code .CL3 Easy CD Creator Layout File Bruker Aspect NMR Data File .CL4 Easy CD Creator Layout File .CL5 Easy CD Creator Layout File .CLA Java Class File (usually .CLASS but can be shortened) CLARION for DOS .CLASS Java Class File .CLB ICQ Contact List Microsoft Office XP Developer Code Librarian cdrLabel Compact Disc Label .CLD Skerryvore Software Simply Calenders .CLF ListPro File .CLG Disk Catalog Database Maxagrid CTM Log File (text format) .CLK Corel R.A.V.E. Animation File .CLL Crick Software Clicker File OzWin CompuServe E-mail/Forum Access Custom Library Search .CLN Backup Configuration Files (Clean files) [Used by some versions of Windows during install] SHL Calendar Utility (in Beta Oct 2002) .CLO Cloe Ray-Tracer [XnView] .CLOE Cloe Ray-Tracer [XnView] .CLP Windows Clipboard/Picture [IrfanView] Quattro Pro Clip Art CLIPS/wxCILPS File (C Language Integrated Production System) Clipper 5 Compiler Script PC Paint/Pictor Page [XnView] GoDot [XnView] .CLR WinEdit Colorization Word List 1st Reader Binary Color Screen Image PhotStyler Color Definition FileMaker Spelling Dictionary .CLS Visual Basic Class Module C++ Class Definition ArcView Geocoding Classification File .CLV Aladdin Knowledge Systems Vbox Current Language File (software distribution) .CLW Microsoft Visual C++ Class Wizard File CLARION Database (DOS & Windows) [CLARION Magazine] .CLX Macro ToolsWorks Macro .CM Craftman Data File .CM2 Curious Labs Poser Camera File .CM4 ClipMate Data File .CMA Applix TM1 Database File (text) Filetopia Collection Manager List (ASCII format - .CML is binary format) .CMB Chromeleon Backup Archive .CMC PowerFront File (part of ShopMind) .CMD OS/2, WinNT Command File DOS CP/M Command File dBase II Program File 1st Reader External Command Menu .CMF Creative Music File Corel Metafile .CMG Chessmaster Saved Game .CMK Card Shop Plus File .CML Cheat Machine Library File (Windows) PADGen Company Info File Filetopia Collection Manager List (Binary format - .CMA is ASCII format) ProWORX Nxt Comment Data (Long - Found in the NxT directory) .CMM CEnvi (ScriptEase:Desktop) Batch File .CMO Virtools Behavioral Server Composition .CMP Leadview (LEAD) Bitmap (Edit with WitchColor) Discorp CMP Image [XnView] Open Access File Address Document JPEG Bitmap CorelDRAW Postscript Printer Header Route 66 Address Document Microsoft Word for DOS User Dictionary Generic CADD Component File Technics Keyboard Composer File SWAT 3 Compressed Sound File [Support Site] .CMQ Culturemetrics (Personality Profile Analyser) .CMR MediaPlayer Movie CribMaster File (Toolcrib inventory management) .CMS TrialDirector Compound Media Storage (Litigation Exhibit Management) .CMT Culturemetrics (Personality Profile Analyser) Chinon ES-1000 Digital Camera [XnView] .CMU Carnegie Mellon Univeristy Stereo Raster Image CMU Window Manager [XnView] .CMV Corel Move Animation .CMW Microsoft Custom Maintenance Wizard File COM-Watch (data analyser) .CMX Corel PhotoPaint Image [XnView] Corel Presentation Exchange Image [XnView] The Sims (Maxis) 3D Body Mesh Data Apple Viewer File Patch File .CMYK Raw Cyan, Magenta, Yellow, and Black Samples .CNC CNC General Program Data Click 'n Create File .CND ControlDraw File Embroidery Design File [possibly read with Melco Sizer Software] .CNF Configuration (various) SpeedDial Inor MinIpaq Software File (MinIpaq transmitter configuration software) .CNM Windows Application Menu Options and Setup File .CNQ Compuworks Design Shop File .CNR CRiSP Harvest File .CNREG EULANDA® Warenwirtschaft (ERP) Configuration Information .CNREP EULANDA® ERP System Report Template .CNS W2K Client Connection Manager Export File .CNT Help File Contents (and other contents needs) .CNV Microsoft Word Data Conversion File WS_FTP Pro Upload Conversion File Data WordPerfect Temporary File Canvas versions 6, 7, 8 .CO Cult3D ActiveX Player Application .COB COBOL Program File (also see .CBL) Caligari Truespace Format TrueSpace2 Object Liant RM/COBOL Runtime System Application File (Runs RM/COBOL applications) .COD Code List Compiler Program Code Multiplan Data File dBase Template Source File SWAT Input Control File (river basin scale model) FORTRAN Compiled Code [FORTRAN] Video Text File Charset Code File .COK Carmageddon Patch File .COL Autodesk Color Palette Multiplan Spreadsheet Lotus Notes Import Column Description File MS Movie Maker Collection File (WINDOWS MOVIE MAKER.COL) Grand Theft Auto 3 Collision Data .COM Command (Executable file) .COMMANDLINE Commandline Powertoy File .COMMON Matlab Install File .COMPAT Likely a text file (e.g., README.COMPAT) .CON Knowledgeware Consolidation File Tree Professional Conifer Creator File Simdir Configuration File Microsoft Train Simulator Train/Model Identification File (CONSIST file) .CONF IRC Related Configuration File (IRCDs or EggDrops) Linux Configuration File (also UNIX) .CONFIG Microsoft .NET Application Configuration Information CRiSP Harvest File .CONTENTSONCLIPBOARD Contents on Clipboard Powertoy File .COO Fabasoft Components .COP Tree Professional Conifer Creator Image File .COR Protein Structure File Web GPS Correction Server Export File WMOVIEC Input File Insight II Output Coordinate File .COS Scarlett Expert System Compiler Query File (Scarlett is not presently available) .COV Microsoft Fax Cover Page (Win2000/XP Cover Page Editor) [also see .CPE] .CP CompuMedic Database (medical billing software) .CP8 CP8 256 Gray Scale Image [XnView] .CPA Colasoft Capsa (network sniffer) .CPC CPC Lite Cartesian Perceptual Compressed File .CPD Fax Coversheet Corel PrintOffice File Complaints Desk Script .CPE Microsoft Fax Cover Sheet (Win95 Cover Page Editor) [also see .COV] .CPF Complete Fax File ProWORX Nxt Comment Pointer And Length File (Long - Found in the NxT directory) .CPG 3dize® Cool Page File .CPH Corel PrintHouse Image .CPI Code Page Information ColorLab Image Calamus [XnView] .CPJ CeQuadrant CD Project Commotion File (compositing software tool) .CPL Control Panel Extension Corel Color Palette Compel Presentation .CPM Cisco Secure Policy Manager File InterComm Project Manager File ConceptHDL Project File CP/M Executable [Cpmtools 2.1] Mussoft Chord Pro Song Format .CPN Microsoft Age of Empires I and II Campaign File .CPO Corel Print House File .CPP Borland C++ Builder 6 CA-Cricket Presents Presentation Maya File .CPR Corel Presents Presentation Knowledge Access Graphics INMOS Transputer Development System Occam Program Code Fold PV-WAVE Compiled Procedure File (Visualization and analysis) .CPS Antivirus Checksum File Central Point PC Tools Backup Colored PostScript File Classroom Performance System File .CPT Macintosh Compressed File Corel Photo-Paint Image [XnView] [IrfanView] Jasc After Shot (Image Expert 2000 taken over by Jasc from SierraImaging) dBase Encrypted Memo CA Cricket Presents Template .CPT6 Corel Photo-Paint Image [IrfanView] .CPX Control Panel Applet Code Page Translation File CryptaPix Encrypted Image Corel Presentation Exchange Compressed Drawing Microsoft Age of Empires I and II Campaign File .CPY Copy Books Data File Atari Ramdrive CPY Commands Flexus COBOL Definitions (function, element and value properties associated with a control) Liant RM/COBOL Development System Include File (Compiles RM/COBOL applications) .CPZ COMPOZ Music Text .CQQ Cool Quiz (Quiz File) .CQZ Cool Quiz (Quiz File) .CR CRiSP Source Code Crack File (produced by several key generator programs) .CR2 Curious Labs Poser Character File .CR4 STABCAL (stability calculation for aqueous systems) File .CR5 Tripod Data Systmes Survey Pro Coordinate File (Surveyor data collection) .CR7 STABCAL (stability calculation for aqueous systems) File .CRA Personal Craft Factory File (no longer supported--GraphicCorp bought by Corel) .CRACKZBYMAB YaHoE File [crack site] .CRD Cardfile (Windows 3.x Database) Guitar Chord File [On-line Guitar Archive] (Usually an ASCII text file) ColdRED Script File (ASCII file parser) .CRE Infinity Game Engine Monster Description [More Info] LiveUpdate Crescendo Catapult File (encrypted MP3 that plays from delivery site only unless you purchase song) .CRF Zortech C++ Cross-Reference File Database Cross-Reference File OM2Cipher Recipient File Sierra Print Artist Craft System Shock 2 Archive [Dragon UnPACKer] Thief 2: The Metal Age Archive [Dragon UnPACKer] Thief: The Dark Project Archive [Dragon UnPACKer] .CRG Calamus [XnView] .CRH Microsoft Golf Image File Links Games Course File .CRK Crack File (differences between original and cracked files) [Need proper version of CRK.EXE to open] .CRL Certificate Revocation List .CRM Capital Research Vendor Bid System Netmino File (SW under development Oct 2002) .CRP dBase Encrypted Database Visual dBASE Custom Report Corel Presents Run-Time Presentation .CRS WordPerfect 5.1 for Windows File Conversion Resource Links Games Course File Gold Game Course File .CRT Certificate File Oracle Terminal Settings Info UNIX Crontab File (not a required extension for Crontab) .CRU CRUSH Compressed Archive .CRW Canon Raw Format (Image) [XnView] [ACDSee 4.0] Crossword Genius (crossword & wordsearch puzzles) .CRX Links Games Course File .CRY Crypto Chat II Encrypted Notebook-content .CRZ Links Games Course File .CS C#.NET Source File Sierra Tribes 2 Mission Configuration .CS3 Casio WK-1800 Keyboard Output File .CSA Comma Deliminated Text Ultimate Ride Roller Coaster InterComm ASCII Sheet File .CSB Corel Photo-Paint Script CircuitSoft Viewer (a module of EMSI Complete) - (Unverified) .CSC Corel Script .CSD Bitstream Fontware File Chemsoft® MSDS Database File Embroidery Design File [possibly read with Melco Sizer Software] .CSE Cardinal Studio Template File (iTV Application Development Tool) .CSF Van Dyke's CRT/SecureCRT Script File GeoMedia Coordinate System File .CSG Statistica Graph File .CSH Hamilton Labs C Shell Script File CARA-Script-Interpreter-Engine Script (4th generation database language) PhotoShop Custom Shape .CSHRC UNIX C Shell Environment File .CSI Cyberautograph Signed Item .CSK Claris Works .CSM Borland C++ Symbol File Borland C++ 4.5 Precompiled Header Kodak DC265 Camera Script .CSN Dreamweaver MX's Snippet .CSP PC Emcee On-Screen Image CaseWare Working Papers Script Page Intersystems Cachй Server Page File Crystal Enterprise Crystal Server Page (script language) Cardinal Studio Project File (iTV Application Development Tool) Corel Draw Service Bureau Profiler .CSQ Foxpro Queries .CSS Hypertext Cascading Style Sheet Stats+ Datafile Statistica Datasheet InterComm Part Body Definition .CST Macromedia Director Cast File Technics Sx KN 6000 Keyboard Custom Style File .CSV Comma-Separated Variables CompuShow Adjusted EGA/VGA Palette .CSW WordPerfect Setup Info File .CT Scitex CT Handshake Bitmap [XnView] Iris CT Graphic [XnView] .CT0 Maxagrid CTM File Being Processed (text format) .CT1 Maxagrid CTM File Successfully Processed (text format) .CT2 Maxagrid CTM File Unsuccessfully Processed (text format) .CTB NoteTab Clipbar AutoCAD Color-dependent Plot Style Table .CTC PC Installer Control .CTD Cobra Track Dump (COmBined Reconstruction for Atlas) Cardtable File (text file) Marine Data File (e.g., automatic float data) Simpsons Cartoon Studio Export File .CTF TIFF Compressed File WhereIsIt Catalog Symphony Character Code Translation MGI PhotoSuite 1.0/8.0 Album File Calculator Text Format HP-95LX Character Translation File for Datacomm AVG Update Control File (Anti-virus software.) .CTG Cartridge Definition File ChessBase Opening Book Canon Powershot Pro 70 Info File BMC Software Patrol File .CTL Setup Information (various) User Control (various) .CTM FreeBSD Content Management File Java Charge Transaction Matrix File Crazytalk Talking Animation File Maxagrid CTM File (text format) SDR99 Speech Recognition Task Time Marked Conversation Input Content Delivery Service (Web site pending as of Feb 2002) .CTP American Greetings Greeting Cards ChemDraw Template .CTT MSN Messenger List of E-mail Contacts LabView File .CTX Compressed Text Visual Basic User Control Binary File Pretty Good Privacy (PGP) Ciphertext File Microsoft Online Course Text Microsoft Windows Terminal Server INI Backup File Chinese Character Input File LICOM AlphaCAM Compiled Text GE Industrial Systems CIMPLICITY Text Version HMI Screen (CIMPLICITY is GE Fanuc's Human Machine Interface product) .CTY SimCity City File Fog Creek CityDesk Template (Web publishing) .CUB OLAP Cube File (definition for SQL Server, any OLE DB, or ODBC-compliant database) .CUE Microsoft Cue Cards Data Description File for a CD-Image [Fireburner.com or Goldenhawk.com] or [Fantom CD Emulator] IsoBuster File .CUF Turbo C Utilities Form Definition .CUL IconForge/ImageForge Cursor Library .CUP OzWin CompuServe E-mail/Forum Access Catalog Library Update .CUR Cursor Microangelo [IrfanView] .CURSOR Sun Icon/Cursor [XnView] .CURXPTHEME Cursor XP File (changes look & function of mouse cursor) .CUS AutoCAD Custom Dictionary File .CUT Dr. Halo Bitmap Graphic [XnView] INMOS Transputer Development System Occam Utility Package Utilitaires (multiple utilities) DataWave Physiological Data File .CUZ CropWalker (agriculture software) .CV Corel Versions Archive Microsoft CodeView Information .CV3 Civilization III Game High Score .CV4 Codeview Colors .CV5 Canvas version 5 .CVA Compaq Diagnostics .CVB Borland BDE File .CVF Microsoft Train Simulator Cab View File Compressed Volume File .CVG Image File .CVP WinFax Cover Page Portrait [XnView] .CVR WinFax Cover Sheet ElectraSoft Fax Cover Sheet .CVS Canvas Drawing File Outlook Express File Sound File [Linux Player] .CVT dBase Converted Database .CVW Codeview Colors .CW3 Crossword Construction Kit Puzzle Group Claris Works Win 3 Document (now Filemaker) Chem Draw Molecular Structure (Lewis structures, orbitals and lab apparatuses) .CWB WebNote Document .CWD StarDraft CWAD File (StarCraft Editor) .CWE Crossword Express .CWF Liant CodeWatch for Windows Workspace File (Development environment for RM/COBOL programs) .CWK Claris Works Data also see AppleWorks Graphicode GCPrevue Work File .CWP Cakewalk SONAR Audio Project .CWS Claris Works Template also see AppleWorks .CWW Crossword Weaver File .CWZ CropWalker File (Agricultural crop recording) .CXE Common XML Envelope .CXM XYZ-Company.com Proprietary File (transfer image and color information) QuadColor Color Correction Master .CXP XYZ-Company.com Proprietary File (transfer corrected color information) Core Media Player XML-based Playlist File .CXT Macromedia Director Protected Cast File Vegas Jackpot Gold Game Data File .CXX Zortech C++ Program .CYA Adobe Cyan Color Separation (also see .BLA, .MAG, .YEL) .CYL Ribbons Molecular Cylinder (Molecular graphics software) .CYM Callus Sound File (Bloodlust Software game) (WinAmp Plug-in Site) .CYN Cynex Root55 Program Extension .CYP Cypherus Encrypted Archive