| cdwlxml | CDWinder License Data |
| cdws | CorelDraw X7 Workspace |
| cdx | Bentley MicroStation Cell Library Index |
| cdx | ConceptDraw PRO XML Document |
| cdx | dBASE Compound Index |
| cdx | NovaBACKUP Database Index |
| cdx3 | Cochlear Data Exchange File |
| ce | CA-Clipper Workbench Application Data |
| cea | Compressed ENVIS Archive |
| cea | DAZ 3D Carrara Pro Exported Data |
| ced | EEGLAB Channel Data |
| cedata | Pogoplug Data |
| cedf | Ultra TC Configuration Editor Data |
| cee | CN3 Compressed Extended Ephemeris Data |
| cef | QPEACE Cluster Exchange Format Data |
| cef | SanDisk CruzerLock Encrypted Data |
| cef | SciFinder Chemical eXchange Format Data |
| cef | Spaix PumpSelector Catalog Exchange Format Data |
| ceh | QPEACE Cluster Exchange Format Header |
| cei | CRiSP Harvest Settings Data |
| ceimg | CeRegEditor Registry Image |
| cekey | McAfee VirusScan Encryption Key Data |
| cel | Affymetrix Probe Array Results File |
| cel | Bentley MicroStation Cell Library |
| cel | Celestia CEL Script |
| cel | PTC Creo Machine Parameter Data |
| cell | CASTEP Cell Input Data |
| celx | Celestia Script File |
| cen | CEN EN 13032 Photometric Data |
| cept | Creative Element Power Tools Data |
