| esu | ESU LokSound Electronic Sound |
| eta | eTreppid Audio Data |
| etm | eTreppid Audio Data |
| etv | eTreppid Audio Data |
| etw | Enter-Tech Recorded Audio |
| evrc | Enhanced Variable Rate Codec Audio |
| ewi | EastWest PLAY Instrument Data |
| exl | Korg X3 Song |
| exs | Emagic EXS-24 Instrument |
| f2r | Farandole Composer Linear Module |
| f32 | Floating-point Raw 32-bit Audio |
| f3r | Farandoyle Composer Blocked Module |
| f4a | Adobe Flash MP4 Audio Stream |
| f4b | Adobe Flash MP4 Audio Book |
| f64 | Floating-point Raw 64-bit Audio |
| far | Farandole Composer Music Module |
| fc | Future Composer Module |
| fc13 | Future Composer Module |
| fc14 | Future Composer Module |
| fc3 | WavePad Editor Data |
| fcm | FC-M Packer Song |
| fff | Gravis UltraSound Sound Bank Data |
| fib | FM-Kingtracker Sound Bank |
| flac | Free Lossless Audio Codec File |
| flt | StarTrekker Music Module |
| fmk | FM-Kingtracker Module |
| fnk | FunkTracker Music Module |
| for | Kurzweil Forte Audio Data |
| fpt | Farandole Composer Pattern |
| fsb | FMOD Sample Bank |
| fsc | FruityLoops Score |
| fsm | Farandole Composer Sample |
| fssd | SoundCap Audio Data |
| ftc | WavePad Audio Data |
| fti | FamiTracker Instruments Data |
