| cms | Connection Manager Service Provider Data |
| cmtbx | CET Designer Component Tab Settings Data |
| cn3 | Cn3D Data |
| cn3d | Cn3D Data |
| cnf | General Configuration |
| IR Prognosis Static Configuration |
| Lotus 1-2-3 Configuration Data |
| MySQL Server Configuration |
| Origin Configuration File |
| cnfp | Nokia Series 40 SD Card Configuration |
| cnreg | EULANDA ERP System Configuration |
| cns | Client Connection Manager Config |
| cntl | GoCart Control Data |
| color | Amaya Color Configuration |
| colr | Kaleidoscope Color Scheme |
| con | General Configuration |
| conf | General Configuration |
| config | General Configuration |
| copreset | Capture One Preset Data |
| cos | Capture One Settings |
| cpf | Canvastic Preferences Data |
| Curtis Programmer Settings |
| O&O CleverCache Profile |
| cpff | Cam2Com Capture Properties |
| cpm | Cisco Secure Policy Manager Settings |
| cq | CQUAL Configuration |
| cron | Unraid OS Cron Data |
| crop | Crick Software Clicker Options |
| crp | CureROM Profile |
| cs-cnf | Currency Server Software Configuration |
| cscfg | Microsoft Azure Service Configuration Schema |
| cscnp | Colasoft Capsa Current Node Group List |
| csd | Casio WK-3000 User Scale Memory |
| csf | Adobe InDesign Color Settings |
| cshrc | C Shell Startup Configuration File |
| csl | CineStyle Color Lookup Settings |
| cst | Apple Logic Studio Channel Strip Settings Data |
| Logic Pro Strip Settings Data |
| ctb | BRLTTY Contraction Table Data |
| ctf | AVG Update Control File |
| cti | BRLTTY Contraction Table Include Data |
| ctr | ERGO Receiver Configuration File |
| cui | Autodesk AutoCAD Custom Workspace |
| cwc | CADfix Wizard Configuration Data |
| cwl | TeXstudio Completion Word List |
| cwy | ChordWizard Songtrix Style |
| cw_ | CorelDraw Workspace Description Data |
| cxr | CX-Programmer Settings Data |
| cxz | PND Scanner Configuration |
| cyberduckprofile | Cyberduck Connection Profile Data |
| d2r | DEM2RWX Saved Settings |
| dapf | Dinkey Pro/FD DinkeyAdd Parameter Data |
| db | CA-dBFast Database Configuration |
| db7 | Casio WK-3000 User Drawbar Organ Tone |
| dbgdt | IAR Embedded Workbench Debugger Settings |
| dbh | CodeWarrior Debug Preferences |
| dbl | DAZ Brick Light |
| dc0 | OpenBSD Interface Configuration Data |
| dc1 | OpenBSD Interface Configuration Data |
| dcc | Nokia Dynamic Camera Configuration |
| dce | DCE AutoEnhance Settings |
| dcf | Arbortext Editor Document Type Configuration Data |
| CANopen Device Configuration Data |
| DynSite Configuration Data |
| HP 95LX Comm Program Settings Data |
| dcls | Catia V4 Settings |
| dcp | Adobe DNG Camera Profile |
| dcpr | Adobe DNG Camera Profile Recipe |
| dcst | Adobe InDesign Document Settings |
| def | Binary Editor Definition Data |
| defs | Linux Shadow Password Suite Configuration |
| deft | Juice Grinder Defaults |
| deny | TCP Wrapper Access List Data |
| depot | HP-UX Software Distributor Catalog Depot |
| desktop | Desktop Entry |
| dev | GFI FAXmaker Device Configuration |
| dfc | DeSmuME Firmware Configuration |
| dfrocfg | SUMO dfrouter Configuration |
| diagcfg | Windows Troubleshooting Pack Configuration |
| dirac | DIRAC Configuration Data |
