| Abbreviation | Definition |
|---|---|
| ETX | Structure Enhanced (setext) text |
| EUC | Japanese text (Kanji) |
| EVP | Sound envelope (general purpose data curves stored as doubles) (mxv) |
| EVT | Event descriptions |
| EVT | Event log |
| EVY | Document (WordPerfect Envoy) |
| EWD | Document (Express Publisher for Windows) |
| EWL | Microsoft Encarta Document file |
| EX3 | Harvard Graphics 3.0 Device driver |
| EXC | QEMM Exclude file for Optimize (do not process the data) |
| EXC | Text document |
| EXC | VM/CMS REXX language source code file |
| EXE | Directly executable program (MSDOS) |
| EXM | Msdos executable system-manager compliant (HP calculator) |
| EXP | Express schema (STEP) |
| EXP | Protected mode executable program (PharLap) |
| EXT | Zaw |
| EXX | Intermediate file by MsgPut (IBM LinkWay) |
| EZF | Fax (Calculus EZ-Fax) |
| F | Fortran language source code file (fixed form) |