| Abbreviation | Definition |
|---|---|
| WDB | Microsoft Works DataBase file |
| WDBN | Word/Macintosh 5.1a formatted binary document |
| WDGT | Mac OS X Widget |
| WEB | Web document (Corel Xara) |
| WEBOOGL | Web Object Oriented Graphics Library |
| WFM | dBASE Form Designer Form object |
| WFN | CorelDraw Windows 3.0 font file |
| WFX | Data file (Winfax) |
| WG1 | Lotus 1-2-3/G Worksheet |
| WG2 | Lotus 1-2-3 for OS/2 Worksheet |
| WGP | Wild Board Games Game data |
| WHIP | WHIP file Bitmap graphics |
| WIC | Garbage, fake compressed data |
| WID | Ventura Publisher Width table |
| WIF | Weaving Information File |
| WIL | WinImage Data |
| WIM | Windows IMaging File Format |
| WIN | Window file (FoxPro - dBASE) |
| WINS | Makefile for WINS platform ( EPOC) |
| WIZ | MicroSoft Word Wizard file |