| e2p | PonyProg Device File |
| e3 | Think3 Thinkdesign CAD Document |
| e57 | Lidar E57 Point Cloud Data |
| e60 | MicroPAVER 6.0 Data |
| eab | Sybase PowerDesigner Enterprise Architecture Model Backup |
| eac | EmEditor Auto Complete File |
| eaf | MicroEMACS Abbreviation File |
| eal | Enfocus PitStop Action List |
| eam | Sybase PowerDesigner Enterprise Architecture Model |
| eas | RSLogix 5000 Symbol Data |
| ebb | Empower Business Bulletin Data |
| ebcdic | EBCDIC Encoded Data |
| ebd | IBIS Electrical Board Description |
| ebf | Efficient Binary Format Data |
| ebts | Electronic Biometric Transmission Standard |
| ebv | Ash Ware Enhanced Behaviour Data |
| ec0 | MetroCount Traffic Data |
| ec8 | Cashflow Manager v8 Export File |
| ecb | EccoPro Database Backup |
| ecc | Dvdisaster Error Correction File |
| ecd | Abbyy FineReader Compiled Dictionary |
| ecg | Electrocardiography Data |
| ech | EasyChem Save |
| eci | Ettercap Info Log |
| ecl | Mass Mailing News E-Campaign List |
| ecn | Electrochemical Noise Data |
| eco | EccoPro Database |
| ecp | Ettercap Packet Log |
| ecr | Ecrypt Encrypted File |
| ecu | TunerPro ECU Configuration |
