| e2pat | Electribe 2 Pattern |
| e4b | EOS Bank Data |
| eac3 | Enhanced AC-3 Audio |
| ear | ETI Audio Recording File |
| edm | Ensoniq Mirage Disk Image |
| edq | Ensoniq SQ1 Disk Image |
| efa | Ensoniq ASR File |
| efe | Ensoniq EPS Instrument File |
| efk | Ensoniq KT Audio Data |
| efq | Ensoniq SQ1 Instrument Data |
| efs | SQ-80 Sample |
| efv | Ensoniq VFX-SD Instrument |
| elastik | Elastik Sound Bank Data |
| em2 | E-mu Emax II Sound Bank |
| emb | Everest Embedded Bank Data |
| emd | Advanced 16-Bit Tracker Module |
| emelody | eMelody Ringtone |
| emu-sl | E-MU 0202 Sound Library |
| emy | eMelody Ringtone |
| eol | Digital Winds Music |
| eopn | Everyone Piano Composed Music |
| eov | Epson Voice Creation Tool Voice Data |
| epm | Electric Pipes Music |
| eseq | Yamaha E-SEQ File |
| esps | ESPS Sampled Data |
| esu | ESU LokSound Electronic Sound |
| eta | eTreppid Audio Data |
| etm | eTreppid Audio Data |
| etv | eTreppid Audio Data |
| etw | Enter-Tech Recorded Audio |
