| Extension | File Description |
| .WBR | Uncommon Files |
| .WBRX | Uncommon Files |
| .WBS | Uncommon Files |
| .WBSP | Uncommon Files |
| .WBT | Game Files |
| .WBU | Uncommon Files |
| .WBV | Uncommon Files |
| .WBW | Uncommon Files |
| .WBX | Uncommon Files |
| .WBXML | Web Files |
| .WBY | Uncommon Files |
| .WBZ | Raster Image Files |
| .WC | Uncommon Files |
| .WC$ | Uncommon Files |
| .WC0 | Uncommon Files |
| .WC1 | Uncommon Files |
| .WC2 | Uncommon Files |
| .WC3 | Uncommon Files |
| .WC4 | Uncommon Files |
| .WC5 | Uncommon Files |
| .WC6 | Uncommon Files |
| .WC7 | Uncommon Files |
| .WC8 | Uncommon Files |
| .WC9 | Uncommon Files |
| .WCA | Uncommon Files |
| .WCAT | Data Files |
| .WCB | Uncommon Files |
| .WCC | Uncommon Files |
| .WCD | Data Files |
| .WCE | Uncommon Files |
| .WCF | Data Files |
| .WCFG | Uncommon Files |
| .WCG | Uncommon Files |
| .WCH | Uncommon Files |
| .WCI | Uncommon Files |
| .WCJ | Uncommon Files |
| .WCK | Uncommon Files |
| .WCL | Uncommon Files |
| .WCM | Misc Files |
| .WCN | Uncommon Files |
| .WCO | Uncommon Files |
| .WCP | Video Files |
| .WCQ | Uncommon Files |
| .WCR | Uncommon Files |
| .WCS | Uncommon Files |
| .WCT | Uncommon Files |
| .WCU | Uncommon Files |
| .WCV | Uncommon Files |
| .WCW | Uncommon Files |
| .WCX | Settings Files |
| .WCY | Uncommon Files |
| .WCZ | Settings Files |
| .WD | Uncommon Files |
| .WD0 | Uncommon Files |
| .WD1 | Uncommon Files |
| .WD2 | Uncommon Files |
| .WD3 | Uncommon Files |
| .WD4 | Uncommon Files |
| .WD5 | Uncommon Files |
| .WD6 | Uncommon Files |
| .WD7 | Uncommon Files |
| .WD8 | Uncommon Files |
| .WD9 | Uncommon Files |
| .WDA | Uncommon Files |
| .WDAT | Uncommon Files |
| .WDB | Game Files |
| .WDC | Uncommon Files |
| .WDD | Uncommon Files |
| .WDE | Uncommon Files |
| .WDF | Game Files |
| .WDG | Uncommon Files |
| .WDGT | Web Files |
| .WDH | Uncommon Files |
| .WDI | Uncommon Files |
| .WDJ | Uncommon Files |
| Extension | File Description |
| .WDK | Uncommon Files |
| .WDL | Developer Files |
| .WDM | Uncommon Files |
| .WDN | Uncommon Files |
| .WDO | Uncommon Files |
| .WDOC | Uncommon Files |
| .WDP | CAD Files |
| .WDPROJ | Uncommon Files |
| .WDQ | Data Files |
| .WDR | Uncommon Files |
| .WDS | Uncommon Files |
| .WDSC | Uncommon Files |
| .WDSEML | Uncommon Files |
| .WDT | Uncommon Files |
| .WDU | Uncommon Files |
| .WDV | Uncommon Files |
| .WDW | Developer Files |
| .WDX | Uncommon Files |
| .WDY | Uncommon Files |
| .WDZ | Uncommon Files |
| .WD_ | Uncommon Files |
| .WE | Uncommon Files |
| .WE0 | Uncommon Files |
| .WE1 | Uncommon Files |
| .WE2 | Uncommon Files |
| .WE3 | Uncommon Files |
| .WE4 | Uncommon Files |
| .WE5 | Uncommon Files |
| .WE6 | Uncommon Files |
| .WE7 | Uncommon Files |
| .WE8 | Uncommon Files |
| .WE9 | Uncommon Files |
| .WEA | Data Files |
| .WEAP | Game Files |
| .WEB | Web Files |
| .WEBA | Audio Files |
| .WEBAPP | Uncommon Files |
| .WEBARCHIVE | Web Files |
| .WEBHISTORY | Web Files |
| .WEBLOC | Web Files |
| .webm | Video Files |
| .WEBOOGL | Uncommon Files |
| .WEBP | Raster Image Files |
| .WEBPART | Uncommon Files |
| .WEBPNP | System Files |
| .WEBSITE | Web Files |
| .WEC | Uncommon Files |
| .WED | Uncommon Files |
| .WEE | Uncommon Files |
| .WEF | Uncommon Files |
| .WEG | Uncommon Files |
| .WEH | Uncommon Files |
| .WEI | Uncommon Files |
| .WEIGHT | Uncommon Files |
| .WEJ | Uncommon Files |
| .WEK | Uncommon Files |
| .WEL | Uncommon Files |
| .WELCOME | Uncommon Files |
| .WEM | Uncommon Files |
| .WEN | Uncommon Files |
| .WEO | Uncommon Files |
| .WEP | Uncommon Files |
| .WEPN | Uncommon Files |
| .WEQ | Uncommon Files |
| .WER | Uncommon Files |
| .WES | Uncommon Files |
| .WESTERN | Uncommon Files |
| .WET | Uncommon Files |
| .WEU | Uncommon Files |
| .WEV | Uncommon Files |
| .WEW | Uncommon Files |
| .WEX | Uncommon Files |
| .WEY | Uncommon Files |
| .WEZ | Uncommon Files |
| .WF | Uncommon Files |
