| .cl |
Cursor Library |
| .ci |
Windows Content Indexer Catalog File |
| .csplan |
SPSS Sampling Plan File |
| .cms |
Connection Manager Service Profile |
| .cme |
Crazy Machines Experiment File |
| .cryptra |
Cryptra Encrypted File |
| .chg |
Quicken Online Data File |
| .cdm |
NTI CD-Maker Image |
| .c10 |
WinAce Split Archive Part 10 File, Solid Edge Assembly files, Calc spreadsheet files... |
| .cmmtheme |
CleanMyMac Theme File |
| .camv |
Camtasia Video File |
| .ctbodyfitting |
CrazyTalk Animator Actor Fitting File |
| .crypted |
WinOptimizer Encrypted File |
| .cf2 |
Common File Format File |
| .ckf |
Casio Keyboard File |
| .cvw |
CaseView Document |
| .cx3 |
CMS Recorded Video File |
| .czp |
ClozePro Archive |
| .cl2doc |
Comic Life 2 Document |
| .cl2tpl |
Comic Life 2 Template |
| .calibre |
Calibre Device Data File |
| .chunk001 |
File Splitter Split Archive Part 1 |
| .cawr |
Espresso workreport Document |
| .cor |
Trimble Corrected SSF File |