| wni | Generations Family Tree Data |
| wni | Wisco RC21 Virtual Com Port Settings |
| wnk | Wink Presentation |
| wof | Aveva MDS Witch Hanger Data |
| wog | WAsP Obstacle Group |
| wop | Wonderland Adventures Editor Object |
| work | Bibble Work Queue |
| wot | Web of Trust Data |
| wot | WebEx Recording File |
| wov | Cakewalk Sonar Picture Cache |
| wpi | OS/2 WarpIN Installer |
| wpk | Corel WordPerfect Keyboard Layout |
| wpo | Holux GM-101 Waypoint |
| wpp | WebPlus Site Data |
| wpr | Holux GM-101 Route |
| wprp | Windows Performance Recorder Recording Profile |
| wpx | WebPlus Site Template |
| wqs | WebQuest Surfer Data |
| wr | STK Write Ups File |
| wrf | WebEx Recording File |
| wrg | WAsP Resource Grid |
| wrr | WAsP Roughness Rose Data |
| wrt | WhistlerMap Waypoints Data |
| wrts | Wrts Data |
| wsad | OpenEdge Web Services Application Descriptor |
| wsb | Microsoft Sharepoint Document Set |
| wsg | WAsP Site Location Data |
| wsk | Ashampoo Media Player Skin |
| wsl | Win-Situ Log |
| wspak | WebsitePanel Backup |
| wsr | Mail.dat Walk Sequence File |
| wsstyles | Windows Sidebar Styler Style |
| wsw | WebSite-Watcher Bookmark List |
| wsx | WinMX Server Information File |
| wsz | WinAMP Skin |
