File extensions that begin with C.
Ext. Type of file
C C source code
CAB Microsoft compressed format
CAG Clip art gallery (compressed)
CAL Windows calendar
CAL SuperCalc spreadsheet
CAL CALS raster and vector formats
CAM Casio camera raster format
CAP Ventura Pub. captions
CAL CALS raster and vector formats
CBT Microsoft computer-based training
CCB Visual Basic animated button
CCH Corel Chart
CCJ Crossword compiler Java
CDA CD audio track
CDC Nero CD cover
CDF Common data format (scientific)
CDF Virtual worlds
CDR CorelDRAW vector graphics
CDT CorelDRAW template
CDT CD Text
CDT Corel DESIGNER template
CDX CorelDRAW compressed drawing
CDX FoxPro and Clipper index
CE Computer Eyes scanner raster format
CFG Configuration
CFM Cold Fusion
CGM CGM vector graphics
CH3 Harvard Graphics chart
CHM Compiled HTML
CHP Ventura Pub. chapter
CHK DOS/Windows corrupted (Chkdsk)
CIF Ventura Pub. chapter info.
CIT Intergraph scanned image
CK? iD/Apogee Commander Keen ?
CLC Compressed BMP
CLP Windows clipboard
CLS Visual Basic class module
CLW Compressed WMF (CDE)
CMD DOS/Windows command (batch) file
CMF Corel metafile
CMF Creative Music Format (MIDI-like)
CMP LEAD Technologies bitmap
CMP RichLink composed format
CMX Corel Presentation Exchange
CMV Corel Presentation Exchange
CNT Windows help contents
COB COBOL source code
COB Truespace 3D
COM DOS/Windows executable under 64K
CP Unix archive (from CPIO)
CPD Fax cover document
CPE Fax cover document
CPI DOS code page
CPL Windows control panel applets
CPL Corel color palette
CPP C++ source code
CPR Knowledge Access bitmap
CPR Corel Presents presentation
CPT Corel Photopaint image
CPT Mac Compactor archive
CPX Corel Presentation Exchange
CRD Cardfile
CRDOWNLOAD Chrome download (in process)
CRP Corel Presents runtime presentation
CS C# source code
CSC Corel script
CSF Corel symbol library
CSS Cascading style sheet
CSV Comma separated values
CT Scitex CT bitmap
CTL Misc control and configuration
CUR Cursor
CUT Dr. Halo bitmap
CV5 Canvas 5 vector/bitmap