| .czip |
ZipGenius CryptoZip File |
| .clt |
Clarity Legal Transcript File |
| .cba |
Comic Book ACE Archive |
| .cys |
Cytoscape Session File |
| .cbu |
Comodo Backup File |
| .cbs |
Code Breaker PS2 Save File |
| .cxp |
CX-Programmer Project File |
| .cdo |
Crescendo Music Notation File |
| .colz |
Adobe Collage File |
| .caff |
Core Audio File |
| .cov |
Fax Cover Page File |
| .cpe |
Fax Cover Page File |
| .cddx |
Circuit Diagram Document |
| .c32 |
Syslinux COM32 Module |
| .cdlx |
Audition CD Layout File |
| .cine |
Phantom Digital Video File |
| .crv |
VCarve Pro Design File |
| .cng |
CryptoNG Encrypted Archive |
| .ccip |
Curse Client Install Package |
| .cww |
Crossword Weaver Puzzle File |
| .codasite |
Coda Site File |
| .clips |
Coda Clips File |
| .codaplugin |
Coda Plug-in |
| .cos |
Capture One Settings File |