| .cfs |
Lucene Compound Index File |
| .cul |
Windows Cursor Library |
| .cml |
Chemical Markup Language File |
| .cas |
Autodesk Cascade License File |
| .cvr |
Microsoft Crash Report File |
| .cch |
.NET Security Resolution Cache File |
| .cxf |
Picasa Collage File |
| .cdf-ms |
ClickOnce Compiled Manifest File |
| .cerber3 |
Cerber Ransomware Virus File |
| .cmm |
Corel Multimedia Manager Album |
| .cos2 |
Pinnacle Studio Cache File |
| .cvf |
CPU-Z Validation File |
| .crashed |
AbiWord Crash-Saved Document |
| .cl |
Cursor Library |
| .calibre |
Calibre Device Data File |
| .chunk001 |
File Splitter Split Archive Part 1 |
| .chksplit |
Archiver Split Checksum File |
| .cmpkg |
craftersmine Package |
| .calb |
Coolect Album File |
| .ca |
Initial Telnet Cache |
| .c2u |
Texas Instruments CBL 2 OS File |
| .cpu |
Virtual CPU File |
| .dat |
Data File |
| .db |
Mobile Device Database File |