| c4g | OpenClonk Game System Data |
| c4i | Clonk Game Object Data |
| c4k | Clonk Game Key |
| c4l | Clonk Game Data |
| c4m | Clonk Game Material Data |
| c4p | Clonk 4 Player Data |
| c4s | Clonk Game Scenario |
| c4u | OpenClonk Update System Data |
| c4v | Clonk Game Video |
| c93 | Cyberia C93 Video |
| ca2 | Forza MotorSport Game Data |
| cam | NASCAR Racing 2002 Camera Settings Data |
| Oddworld: Abes Oddysee Background Data |
| Star Trek Elite Force 2 Camera Data |
| Titanfall CAM Data |
| campaign | Wee Tanks! Campaign Data |
| canim | Shank Game Animation Data |
| car | Carnivores: Ice Age Game Resources Data |
| Gary Gadget Car Data |
| NASCAR Racing 2002 Car Description |
| Railroad Tycoon 3 Car Properties Data |
| card | Funkiball Adventure Saved Game Data |
| cas | Battlefield 4 CAS Data |
| Medieval 2: Total War Model Data |
| Need for Speed Rivals Game Data |
| Quest Compiled Adventure Game |
| cat | Catz Game Data |
| Fallout 3 CAT Data |
| cau | Trespasser Game Audio |
| cba | ChessBase Annotations |
| cbb | ChessBase Search Booster |
| cbc | ChessBase Commentators Index |
| cbd | ChessBase Hash File of Doubles Data |
| Test Drive Unlimited Cache Data |
| cbe | ChessBase Team Index |
| cbf | ChessBase Old Game Database |
| Infinity Engine CBF Data |
| cbg | ChessBase Game Moves Data |
| cbgi | ChessBase Second Search Booster |
| cbgt | Bioware Compressed BackGround Tiles Data |
| cbh | ChessBase Database Header |
| cbi | ChessBase Old Database Index |
| cbj | ChessBase Second Header Data |
| cbl | ChessBase Database |
| cblay | ChessBase Window Layout Data |
| cbm | ChessBase Multimedia Baggage Data |
| cbmap | Containment Breach Map |
| cbot | Cetera Bot Data |
| 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 |
| cch | Unlimited Adventures Character Reference |
| cct | Railroad Tycoon 3 Car Type Description |
| ccx | Spring HAPI Compressed Data File |
| Total Annihilation Mod Data |
| cd0 | Nightlong: Union City Conspiracy Game Data |
| cd1 | Nightlong: Union City Conspiracy Game Data |
| cdata | Command and Conquer 3 Audio Data |
| cdds | Midtown Madness 3 Data |
| cdp | Trainz Content Dispatcher Pack |
| cdp2 | Trainz Classics Content Dispatcher Pack 2 |
| cdpth | Bioware Aurora CDPTH Data |
| ceg | The Punisher Data |
| cel | Constructor Animation Data |
| cells | The Game of Life Cells Data |
| cem | Children of the Nile Model Data |
| Empire Earth Game Data |
| cfb | Infinity Engine Binary Dump |
| cfge | Jewel Quest Configuration |
| cfr | CrossFire Replay |
| cfreplay | CrossFire Replay |
| cfx | Crysis Shader Data |
| cfxb | Crysis Shader Cache Data |
| cfz | Robot Arena II Compressed Data |
| cgf | Far Cry Game 3D Model |
| cgg | Renegade Paintball Game Audio |
| cgm | Heroes of Might and Magic III Saved Game |
