| cba | ChessBase Annotations |
| cbb | ChessBase Search Booster |
| cbc | ChessBase Commentators Index |
| cbd | Test Drive Unlimited Cache Data |
| cbe | ChessBase Team Index |
| cbf | ChessBase Old Game Database |
| cbg | ChessBase Game Moves Data |
| cbgi | ChessBase Second Search Booster |
| cbh | ChessBase Database Header |
| cbi | ChessBase Old Database Index |
| cbj | ChessBase Second Header Data |
| cbm | ChessBase Multimedia Baggage Data |
| cbmap | Containment Breach Map |
| cbp | ChessBase Players Index |
| cbs | ChessBase Source Index |
| cbt | ChessBase Tournament Index |
| cbtt | ChessBase Tutorials Database |
| cbv | ChessBase Archived Database |
| cbz | ChessBase Encrypted Archived Database |
| ccx | Spring HAPI Compressed Data File |
| cdds | Midtown Madness 3 Data |
| cdp2 | Trainz Classics Content Dispatcher Pack 2 |
| ceg | The Punisher Data |
| cfge | Jewel Quest Configuration |
| cfr | CrossFire Replay |
| cfreplay | CrossFire Replay |
| cfz | Robot Arena II Compressed Data |
| cgs | Far Cry Game Archive |
| cgz | AssaultCube Map |
| chart | Feedback Chart File |
