| calib | Chief Architect Library |
| calibre | Calibre Device Information Data |
| calibz | Chief Architect Library Archive |
| calls | NimbleGen Gene Expression Value Data |
| cam | ADS40 Camera Calibration Data |
| cam | Cimagraphi Mill Data |
| cam | CircuitCAM Design |
| cam | FastCAM Data |
| cam | Minolta Vivid 3D Scanner Camera Data |
| cam | PC 1000 Calculation Method Data |
| cam-ft | CircuitCAM Footpring Library |
| cam-gmc | CircuitCAM GMC Library |
| cam360 | Autodesk Fusion 360 CAM Data |
| camm | Espresso Mind Map Document |
| camp | WCS Color Appearance Model Profile |
| campackage | Camtasia Studio Package |
| camt | SEPA CAMT Data |
| camtemplate | Camtasia Studio Template |
| camtheme | Camtasia Studio Theme Data |
| can3 | Live2D Cubism 3 Basic Motion Data |
| canf | CanOpener Data |
| cannedsearch | Mac OS X Finder Predefined Search Data |
| cao | CAO Cryptographic Language Data |
| cap | Agilent LAN Analyser Capture Data |
| cap | CaptionMaker Caption Data |
| cap | Libpcap Captured Packets |
| cap | PacketView Pro Captured Packet Data |
| cap | Pasco Capstone Experiment Data |
| cap | Shomiti Surveyor Captured Data |
| cap | Snoop Captured Data |
