| W | OpenEdge Architect Source Code File | Developer Files | 4 | 4 |
| W14 | Genesis 2000 Data | Data Files | 1 | 1 |
| W2F | Unknown File Type | Uncommon Files | 1 | 1 |
| W3 | APL+Win Workspace File |
Developer Files
| 2 | 2 |
| W30 | Ventura Publisher Printer Font | Font Files | 1 | 1 |
| W31 | Windows 3.1 Startup Data | System Files | 1 | 1 |
| W32 | Win32 Makefile |
Developer Files
| 2 | 2 |
| W3C | WinCatalog Collection File |
Data Files
| 1 | 1 |
| W3D | Adobe Shockwave 3D File | Video Files | 3 | 3 |
| W3G | Warcraft 3 Replay File | Game Files | 1 | 1 |
| W3M | Warcraft 3 Map File |
Game Files
| 1 | 1 |
| W3N | Warcraft 3 Expansion Campaign Map File |
Game Files
| 2 | 1 |
| W3P | Warcraft 3 Progress File |
Game Files
| 1 | 1 |
| W3U | Warcraft 3 Custom Units Data |
Game Files
| 2 | 1 |
| W3V | Warcraft 3 Campaign Progress Record |
Game Files
| 1 | 1 |
| W3X | Warcraft 3 Expansion Map FIle |
Game Files
| 1 | 1 |
| W3Z | Warcraft 3 Saved Game File |
Game Files
| 1 | 1 |
| W40 | Windows 95 Backup File | Backup Files | 1 | 1 |
| W44 | dBASE Temporary File | Temporary Files | 1 | 1 |
| W51 | Corel WordPerfect 5.1 Document File |
Data Files
| 1 | 1 |
| W52 | Corel WordPerfect For Windows Document |
Data Files
| 1 | 1 |
| W5S | Winamp CDDB Database File | Database Files | 1 | 1 |
| W61 | Corel WordPerfect 6.1 Document | Text Files | 1 | 1 |
| W64 | Sony Wave64 Audio File | Audio Files | 3 | 1 |
| W73 | Unknown File Type |
Uncommon Files
| 1 | 1 |
| W7S | Yamaha Synthesizer User Song Data File |
Audio Files
| 1 | 1 |
| W98 | Microsoft Windows 98 Related Data |
Data Files
| 1 | 1 |
| WA | Windows Addon Archive | Compressed Files | 2 | 2 |
| WA0 | Magix File |
Video Files
| 1 | 1 |
| WA1 | Magix File |
Video Files
| 1 | 1 |
| WA2 | Wonderland Adventures Custom Adventure File |
Game Files
| 2 | 2 |
| WAB | Windows Address Book |
Data Files
| 3 | 1 |
| WAC | Inkling Sketch XML File |
Data Files
| 4 | 1 |
| WAD | Doom WAD File |
Game Files
| 2 | 2 |
| WAF | Internet Explorer For Mac Cache |
Temporary Files
| 1 | 1 |
| WAG | Train Simulator Wagon File |
Game Files
| 2 | 2 |
| WAGAME | Worms Armageddon Game Recording |
Game Files
| 1 | 1 |
| WAL | Winamp Modern Skin |
Uncommon Files
| 4 | 4 |
| WALKER | Unknown Apple II File. (found On Golden Orchard Apple II CD Rom) |
Data Files
| 3 | 1 |
| WAM | Worms Armageddon Mission File |
Game Files
| 2 | 2 |
| WAPTT | WhatsApp Messenger Voicemail Recording |
Audio Files
| 1 | 1 |
| WAR | Java Web Archive |
Compressed Files
| 2 | 1 |
| WAS | Symantec Procomm Plus Script |
Developer Files
| 1 | 1 |
| WAT | IBM Voice Type Languages Map Data |
Data Files
| 2 | 2 |
| WAV | WAVE Audio File |
Audio Files
| 19 | 2 |
| WAX | Windows Media Audio Redirect |
Audio Files
| 1 | 1 |
| WB | FIFA 2000 Game Data |
Game Files
| 3 | 3 |
| WB2 | Webshots Picture File | Raster Image Files | 4 | 2 |
| WB4 | WindowBlinds Default Skin | Settings Files | 1 | 1 |
| WBA | WindowBlinds Compressed Skin |
Uncommon Files
| 2 | 1 |
| WBC | Webshots Collection File |
Raster Image Files
| 4 | 2 |
| WBCAT | Microsoft Windows Backup Information |
Backup Files
| 1 | 1 |
| WBD | Webshots Picture File |
Raster Image Files
| 2 | 1 |
| WBF | Microsoft Windows Batch File |
Developer Files
| 8 | 3 |
| WBK | Word Document Backup |
Backup Files
| 2 | 2 |
| WBM | Webmin Module | Plugin Files | 7 | 4 |
| WBMP | Wireless Bitmap Image File |
Raster Image Files
| 4 | 1 |
| WBN | WBNM Flood Hydrograph Model File |
Data Files
| 1 | 1 |
| WBS | WebBlender Project File | Web Files | 1 | 1 |
| WBT | Toribash Help File |
Game Files
| 2 | 2 |
| WBU | Samsung PC Studio Backup File |
Backup Files
| 1 | 1 |
| WBZ | Webshots Download Picture File |
Raster Image Files
| 3 | 1 |
| WC | Valve Hammer Configuration File |
Settings Files
| 2 | 2 |
| WC2 | Working Time Tracker File |
Data Files
| 1 | 1 |
| WC4 | WinCheckIt4 Settings File |
Uncommon Files
| 1 | 1 |
| WCAT | WinCatalog Collection File |
Data Files
| 1 | 1 |
| WCD | Microsoft Works Calendar File |
Data Files
| 4 | 4 |
| WCF | WebEx Saved Chat Session |
Data Files
| 2 | 2 |
| WCFG | WildTangent Configuration |
Game Files
| 1 | 1 |
| WCI | Microsoft Indexing Service Catalog File |
Data Files
| 1 | 1 |
| WCINV | Windows Meeting Space Invitation File |
Uncommon Files
| 1 | 1 |
| WCK | WaterCAD Data |
Data Files
| 1 | 1 |
| WCL | WellCAD Log File |
Data Files
| 2 | 2 |
| WCM | WordPerfect Macro | Executable Files | 2 | 2 |
| WCN | Writer's Café Notebook Data |
Text Files
| 1 | 1 |
| WCO | WinCam 2000 Distributable Movie |
Video Files
| 1 | 1 |
| WCP | WinDVD Creator Project File |
Video Files
| 4 | 4 |
| WCR | Ergane Configuration File |
Settings Files
| 1 | 1 |
| WCRY | WannaCry Virus Encrypted File | Encoded Files | 1 | 1 |
| WCT | WordCast Project |
Data Files
| 1 | 1 |
| WCX | RemoteApp And Desktop Connections Configuration File |
Settings Files
| 2 | 2 |
| WCXF | WorldCard Exchange File |
Uncommon Files
| 1 | 1 |
| WCZ | Chameleon Clock Wallpaper File |
Settings Files
| 1 | 1 |
| WD | Corel PaintShop Photo Pro Image | Graphic Files | 1 | 1 |
| WD2 | American Idol Data |
Game Files
| 2 | 2 |
| WD3 | Offline Explorer Data File |
Data Files
| 1 | 1 |
| WDB | Microsoft Works Database |
Database Files
| 4 | 2 |
| WDF | Workshare Compare DeltaFile |
Data Files
| 9 | 6 |
| WDG | WinDev Procedures |
Developer Files
| 1 | 1 |
| WDGT | Opera Widget File |
Web Files
| 3 | 3 |
| WDL | World Definition Language Script |
Developer Files
| 1 | 1 |
| WDO | WinDev Component List |
Developer Files
| 1 | 1 |
| WDP | Windows Media Photo File |
Raster Image Files
| 9 | 3 |
| WDPROJ | Microsoft Visual Studio Web Deployment Project File |
System Files
| 1 | 1 |
| WDQ | Offline Explorer Queue File |
Data Files
| 1 | 1 |
| WDR | Psion Series 3 Printer Driver |
System Files
| 3 | 3 |
| WDSEML | Thunderbird Searchable Email File |
Uncommon Files
| 1 | 1 |
| WDT | WinSQL Schema Diff Template |
Data Files
| 1 | 1 |
| WDW | WinDev Window File |
Developer Files
| 1 | 1 |
| WDY | WINDEV Run-time Template File |
Data Files
| 1 | 1 |
of 4 
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