| eci | Ettercap Info Log |
| ecl | Mass Mailing News E-Campaign List |
| ecml | EpiCollect Markup Language Document |
| ecml | QuickBooks License Data |
| ecms | ECMerge Merge Status Data |
| ecmul | WinZip Registration Data |
| ecn | Electrochemical Noise Data |
| eco | EccoPro Database |
| ecorediag | Kermeta Ecore Diagram Information |
| ecp | Ettercap Packet Log |
| ecr | Ecrypt Encrypted File |
| ecryptfs | eCryptfs Data |
| ecu | TunerPro ECU Configuration |
| ecv | NETSCAN Vertex Search Results |
| ecx | EccoPro Corrupted Database |
| ed2 | CHARMM ED2 Data |
| ed3 | CHARMM ED3 Data |
| edat | E-Prime E-DataAid 1.x File |
| edat2 | E-Prime E-DataAid 2.x File |
| edb | Act! E-Mail Database |
| edb | Microsoft Exchange Database |
| ede | Edraw Max Element Data |
| edf | Altera EDIF Input File |
| edf | DrumBeat Component Data |
| edf | ESRF Data Format |
| edf | Workshare Synergy EDF Data |
| edf2 | EEGLAB Data Set |
| edfx | Estimator.NET Estimate |
| edgx | Microvellum Edgeband File |
| edh | HRV Edit Data |
