| .colz |
Adobe Collage File |
| .caff |
Core Audio File |
| .cddx |
Circuit Diagram Document |
| .c32 |
Syslinux COM32 Module |
| .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 |
| .codaplugin |
Coda Plug-in |
| .cos |
Capture One Settings File |
| .cg3 |
Cabri 3D Document |
| .ctproject |
CrazyTalk Animator Project File |
| .cts |
CrazyTalk Script File |
| .cpd |
RoboHelp Cache Project Database |
| .cyp |
Home Designer Pro Project File |
| .cdw |
KOMPAS Document |
| .cbv |
ChessBase Database File |
| .cch |
.NET Security Resolution Cache File |
| .cef |
Class Action Gradebook Elementary File |
| .ced |
JVC Camera Video Data File |
| .cw |
CardWorks Template |
| .ckp |
SQL Server Checkpoint File |