| .cdm |
NTI CD-Maker Image |
| .cmmtheme |
CleanMyMac Theme File |
| .camv |
Camtasia Video File |
| .ctbodyfitting |
CrazyTalk Animator Actor Fitting File |
| .crypted |
WinOptimizer Encrypted File |
| .cvw |
CaseView Document |
| .cx3 |
CMS Recorded Video File |
| .czp |
ClozePro Archive |
| .cl2doc |
Comic Life 2 Document |
| .cl2tpl |
Comic Life 2 Template |
| .chunk001 |
File Splitter Split Archive Part 1 |
| .cor |
Trimble Corrected SSF File |
| .cadc |
Corpatla Data Container File |
| .caa |
Chinese Academic Article Link File |
| .civ5save |
Civilization 5 Saved Game |
| .chc |
HCFR Colormeter Data File |
| .cto |
Visual Studio Binary Command Table Output File |
| .cia |
CTR Importable Archive |
| .customdestinations-ms |
Windows 7 Jump List File |
| .cmo |
ASUS BIOS File |
| .calb |
Coolect Album File |
| .ce |
ComputerEyes Image |
| .cut |
Dr. Halo Bitmap Image File |
| .c2d |
WinOnCD Disc Image |