| w7p | Yamaha MO8 User Pattern Data |
| w7v | Yamaha Motif ES Voice Data |
| w8a | Yamaha Motif ES Audio Data |
| w8e | Yamaha Motif ES Library Data |
| w8v | Yamaha Motif ES Voice Data |
| w9e | Yamaha Motif ES Library Data |
| wa | WavArc Compressed Audio |
| wa0 | Magix Music Studio Data |
| waptt | WhatsApp Messenger Recorded Voicemail |
| wav | Broadcast Wave Format Audio |
| wav | Windows Waveform Sound |
| wave | Windows Waveform Sound |
| wax | Windows Media Audio Redirector |
| wbnk | Music Composer Instruments Data |
| weba | WebM Audio |
| wem | Wwise Encoded Media |
| wfb | Turtle Beach Wavefront MIDI Bank |
| wfd | Turtle Beach Wavefront Drum Set |
| wfp | Turtle Beach Wavefront Patch |
| wma | Windows Media Audio |
| wow | Grave Composer Music Module |
| wrf | Westacott WinRanX Instrument Data |
| wrk | Cakewalk Pro Audio Data |
| wsr | Bandai WonderSwan Audio Data |
| wtpt | WireTap Studio Packaged Track |
| wus | WUTG Tagged Audio |
| wusikpack | Wusikstation Sound Package |
| wusiksnd | Wusikstation Sound Data |
| wv | WavPack Audio |
| wvc | Wavecraft Audio |
| wve | Psion 8-bit A-law Audio |
| wvz | MUST Music |
| wwv | WildTangent WAV Audio |
| wyz | WYZTracker Song |
| x0a | Yamaha Motif XS Song Data |