| Abbreviation | Definition |
|---|---|
| WTV | Windows Television |
| WTX | Text document |
| WUL | WINdows Command ( WINCMD) File |
| WUL | WINdows UtiLity Command File |
| WUS | Sub-basin Data-Water Use Input File |
| WVE | Wave file - Sound (8kHz) |
| WVL | Wavelet Compressed Bitmap file - Bitmap graphics |
| WVX | Windows Media Video file |
| WWB | WordPerfect for Windows Button bar for document window |
| WWK | WordPerfect for Windows Keyboard layout |
| WXJ | PowerJ Workspace file |
| WXP | EXP for Windows Document |
| WXR | wxWindows resource file |
| WZB | Librarian of OZ Sharp Book Viewer Add-on |
| WZD | Sharp Wizard Organizer Program or Data File |
| WZG | WZebra File |
| WZN | WhizNotes Document |
| WZS | Microsoft Word Wizard |
| WZU | InTouch Wizard files |
| WZZ | Wizard CD Settings file |