| .cca |
cc:Mail Archive File |
| .cpy |
3ds Max Copy Track File |
| .cal |
Calendar File |
| .cas |
Autodesk Cascade License File |
| .cmap |
CmapTools Concept Map File |
| .cleo |
CLEO Grand Theft Auto Mod File |
| .cvr |
Microsoft Crash Report File |
| .clw |
Visual C++ ClassWizard File |
| .ctv3 |
Citavi 3 Project File |
| .ctv |
Citavi Project |
| .cpk |
DTM Test Log File |
| .cof |
MPLAB COFF File |
| .c3d |
C3D Model File |
| .crf |
Cal3D Binary Materials File |
| .cmf |
Creative Music Format |
| .cnc |
CNC Machine Tool Path |
| .csaplan |
SPSS Analysis Plan File |
| .cmod |
Celestia Model |
| .cmp |
Windows Connection Manager Profile |
| .cgr |
CATIA Graphical Representation File |
| .cpf |
Cognos Project File |
| .cat |
Windows Catalog File |
| .cex |
SolidWorks Enterprise PDM Vault Export File |
| .ccgame |
XNA Creators Club Game Package |