| vzk | SST-Tools VoZaken Text |
| vzm | Ventuz Mesh Data |
| vzx | INM VizionDB Database |
| w2b | WinBackup Archive |
| w2m | Solo Explorer Transcription |
| w2r | WindPRO 2 Profile |
| w3d | Adobe Shockwave 3D Scene |
| w3l | W3launch Data |
| w7g | Yamaha Motif ES Arpeggio Data |
| w7s | Yamaha Motif ES Song Data |
| w7w | Yamaha Motif ES Waveform Data |
| wa! | Tascam Gigastudio Compressed Waveform Data |
| waa | eXtendable Wad Editor WAA Data |
| wab | Windows Address Book Data |
| waflib | Dental Wings Open System Data |
| waj | WinAutomation Job |
| wajac | Sesam GeniE Wave Load Input Data |
| wake | HEADTAIL Wakefield Repository Data |
| wal | CodeWallet Pro 3 Wallet |
| wal | WinAMP Skin |
| wallet | MultiBit Wallet File |
| walletx | Enpass Backup Data |
| wand | GarageBand Magic Template |
| was | Symantec Procomm Plus Script |
| wa_ | Compressed WAV File |
| wb4 | WindowBlinds 4 Default Skin |
| wba | WindowBlinds Skin |
| wbb | WinBackup Archive |
| wbc | Webshots Image Collection |
| wbcat | Windows Backup Catalog |
| wbd | Softlink Whiteboard |
| wbd | WinBreadboard Circuit |
| wbd | eBeam Whiteboard |
| wbdp | ANSYS Workbench DesignPoint Data |
| wbex | ANSYS Workbench Extension |