| wq | SOBEK Water Quality Locations Data |
| wq0 | Corel Quattro Pro for DOS Spreadsheet |
| wq1 | Corel Quattro Pro for DOS Spreadsheet |
| wq2 | Corel Quattro Pro for DOS Spreadsheet |
| wq3 | Corel Quattro Pro for DOS Spreadsheet |
| wqc | Wondershare QuizCreator Data |
| wqd | Sundahus WQ Data |
| wqi | ALEID2000 Water Quality Information Data |
| wql | Windows Management Instrumentation Query Language Data |
| wqs | WebQuest Surfer Data |
| wqz | Water Quality Zone Data |
| wr | STK Write Ups File |
| wrapper | Gnome Desktop Wrapper Data |
| wrd | COREX Manual Word Segmentation Data |
| wrf | WebEx Recording File |
| wrg | WAsP Resource Grid |
| wrlk | Web Research Document Link |
| wrr | WAsP Roughness Rose Data |
| wrt | WhistlerMap Waypoints Data |
| wrts | Wrts Data |
| ws | Hummingbird Exceed Data |
| ws | WonderSwan ROM Image |
| wsad | OpenEdge Web Services Application Descriptor |
| wsb | Microsoft Sharepoint Document Set |
| wsc | WonderSwan Color ROM Image |
| wsd | Erosion 3D Watershed Data |
| wsd | Ultrospec 7000 Data |
| wseq | Workswell Recorded Thermal Sequence |
| wsg | WAsP Site Location Data |
| wsk | Ashampoo Media Player Skin |
