File extensions beginning with c

File Extension Description
C C language source
C Unix file archive
C++ C++ language source
C-- Cólanguage source
C00 Print file
C01 Typhoon wave files
C86 C source code file
CA Initial cache data for root domain servers
CAB Win 95 packed file
CAC dBASE IV executable when caching on/off (see cachedb.bat)
CAD Drawing
CAD Document
CAL Calendar file
CAL Spreadsheet format
CALS Computer Aided Acquisition and Logistics
CALS Support Raster Format
CAM Casio Camera
CAP Caption
CAP Capture file
CAS C + ASM language source
CAT Catalog
CAT Device driver digital signature
CAT Stellarium Star Catalogue
CATDrawing Drawing file of CATIA V5
CATPart Part file of CATIA V5
CATProduct Assembly file of CATIA V5
CATS Combined source
CBA Source code
CBC Fuzzy logic system
CBL COBOL source code file
CBM Compiled bitmap graphics
CBR Comic Book Reader (RAR file)
CBS MasterWord button bar configuration file
CBT Computer Based Training
CBZ Comic Book Reader (ZIP file)
CC C++ source code file
CC CC language source
CCC Bitmap graphics (native format)
CCF Communications configuration file
CCH Chart
CCITT CCITT Group 3 and Group 4 Encoding
CCL Communication Command Language file
CCO BTX Graphics file
CCT Print Template
CD CD description
CDA CD-Audio
CDB Card database
CDB Main database
CDF Common Data Format
CDF Company Data File
CDF Cyberspace Description Format
CDF Graphics
CDK Document
CDL CADKey CADL Language
CDM Disk Drivers NPA
CDM Music format (compressed)
CDR Vector graphics format (drawing)
CDT Corel Draw Template File
CDX Compound index file
CE Computer Eyes
CE Main.ce
CEB Cont. Edge Bitmap
CEF CA-Clipper Workbench Application
CEF Export File
CEF Compact Embedded Font
CEG Bitmap graphics
CEL Animation CEL
CEL Graphics
CF Configuration file
CFA Audio file
CFC ColdFusion Component
CFG Configuration file
CFG Configuration file
CFL Chart
CFM ColdFusion Markup Language
CFN Font data
CFO C Form Object internal format object file
CFT CFast graphics file
CGA CGA display font
CGI Common Gateway Interface script
CGM Computer Graphics Metafile vector graphics
CH Clipper language header
CH3 Chart
CH4 Presentation
CHD Font descriptor
CHI ChiWriter Document
CHK Recovered data
CHK Temporary file
CHL Configuration History Log
CHM Compiled Help File
CHML Encrypted Data File
CHN Data
CHP Chapter file
CHR Character set
CHT Chart
CHT CHeaT in any program/game
CHT Interface file for ChartMaster
CHZ Archive
CIF Caltech Intermediate Format graphics file
CIF Chapter information
CIF Crystallographic Information File
CiM C Text Mode Image File
CIX Database index
CKB Borland C++ 4.x editor keystroke mapping
CL COMMON LISP source code file
CLA Source
CLASS Java class file
CLD Clipper debugger configuration file
CLP Clip art graphics file
CLP Clipboard file
CLP Compiler response file
CLP Graphics format
CLR Color binary screen image
CLR Color definitions
CLR Color scheme
CLR Palette file for GIS format
CLS C++ class definition file
CLW MFC Class Wizard information
CM Data file
CMB Xtree for Windows Button Bar file
CMD Command
CMD Command Prompt batch file
CMD executable programs
CMD External command menu
CMD OS/2 batch/REXX file
CMF FM-music file (Creative Music File)
CMK Card
CMM CMM script (batch) file
CMP Bitmap graphics (Lead CMP compression)
CMP Compressed data
CMP Header file for PostScript printer files
CMP Photofinish Calibration Map
CMP User dictionary
CMRL Concise message routing language
CMS Content Management System
CMU Carnegie Mellon University Formats
CMV Animation (CorelMove CorelDraw 4.0)
CNC CNC general program data
CND System generation conditional file
CNF Configuration (program - printer setup)
CNF Configuration file
CNV Temporary file
CNV Winword DLL used as part of an import operation (CNV=converter)
CO Cobalt - parametric drafting and 3D modeling
COB Calgari trueSpace2 File Format
COB COBOL source code file
COD Code definition table
COD Datafile
COD file uncluding CODES for any program/game
COD Printer code definition file
COD Program compiled code
COD Template source file
COD Videotext file
COE Coefficient file
COF Animation Control File
COL Color palette
COL Spreadsheet
COM Command (memory image of executable program)
COM Indirect command file (sequence of commands to be executed)
CON Configuration file
CON MSTS Consist file
CPC Compressed image
CPD Script
CPI ColorLab Processed Image bitmapped graphics file
CPI MS-DOS codepage file
CPL Control panel file
CPL Presentation
CPMZ ConPro/Miradi Zipfile
CPP C++ language source
CPP Presentation
CPR Knowledge Access
CPS backup of startup files by QEMM (?) autoexec.cps
CPT Encrypted memo file
CPT Mac file archive
CPT Template
CPZ Music text file
CR2 Raw image format
CRA Advanced crack file (usually text)
CRD Cardfile
CRD Molecular coordinates
CRF Cross-reference
CRK Crack file (usually text)
CRP Encrypted database
CRS File Conversion Resource
CRT Terminal settings information
CRU Compressed file archive created by CRUSH
CS C# source file
CSD Compact Shared Document
CSG Batch file (Submit)
CSG Graph
CSM Borland C++ 4.x precompiled header file
CSP PC Emcee Screen Image file
CSS Datafile
CSS Datasheet
CSS cascading style sheet
CSV Adjusted EGA/VGA palette
CSV Comma Separated Values text file format (ASCII)
CTC Control file
CTF Character code translation file
CTK CommonTime Key file
CTL Control file
CTL BATCH control file (generated by BATCH from .BAT file)
CTT BATCH Temporary file
CTX Ciphertext file
CTX Course TeXt file
CTX document
CUF C Utilities Form definition
CUR Windows resource (cursor image file)
CUT Graphics format (bitmapped graphics)
CV4 Color file
CVP Cover page
CVS Graphics
CVT Backup file for CONVERTed database file
CVW Color file
CWK Datafile
CXX C++ source code file