| vwf | Altera Quartus II Vector Waveform File |
| vxc | Xilinx ISE Conformal-LEC Assertion Data |
| vxp | Maui Runtime Environment Application |
| vzt | Verilog Zipped Trace Data |
| w | CWEB Source Code |
| OpenEdge ABL Procedure File |
| w3 | Milinta APL APL+Win Workspace |
| w32 | Win32 Makefile |
| wadcfg | Microsoft Azure Diagnostics Configuration Data |
| wam | WebAction Macro |
| wamb | WebDev Skin Data |
| wasm | WebAssembly Binary Code |
| wast | WebAssembly Textual Code |
| wat | WebAssembly Textual Code |
| wbc | WinBatch Compiled WBT Script |
| WinDev Classes Data |
| wbe | WinDev Report Data |
| wbg | WinDev Procedures Data |
| wbm | WinBatch Macro |
| wbo | DataFlex Web Business Object |
| wbp | WinDev Project Identifiers Data |
| wbr | WinDev Request Identifiers Data |
| wbs | WebExpress Website Data |
| wbsp | WhizBase Server Page |
| wbt | WinBatch Script |
| wbt64 | WinBatch Script |
| wbw | WinDev Windows Identifiers Data |
| wcc | WinDev Class Compilation Data |
| wce | WinDev Report Compilation Data |
| wcg | WinDev Procedures Compilation Data |
| wci | WinDev Internal Components Data |
| wcp | WinDev Project Compilation Data |
| wcp_settings | Alpha Five Web Project Settings |
| wct | Visual Basic WebClass HTML Template |
| wcw | WinDev Windows Compilation Data |
| wda | WinDev Analysis Description |
| wdbatch | WinDev Batch File |
| wdc | WinDev Class Property Data |
| wdcoverage | WinDev Code Coverage Data |
| wde | WinDev Report File |
| wdf | Microsoft Windows Driver Foundation Data |
| WinDev Custom Installation Data |
| wdfab | WinDev Action Plan Library |
| wdg | WinDev Procedures |
| wdh | WinDev Help Description |
| wdi | WinDev Component Description |
| wdit | WinDev External Component Translation |
| wdk | WinDev Component |
| wdl | WinDev Library |
| wdm | Visual Interdev Web Project Items Data |
| WinDev WDINT Extraction File |
| wdo | WinDev Component List |
| wdr | WinDev Request Data |
| wdsc | WDScript Source Code |
| wdt | WinDev Template File |
| WinSQL Schema Diff Template |
| wdu | WinDev Library Components Data |
| wdump | WinDev Debug Dump Data |
| wdv | WinDev Conversion Data |
| wdw | WinDev Window File |
| wdy | WinDev Run-Time Template |
| web | CWEB Source Code |
| FWEB Source Code |
| webinfo | Visual Studio .NET Web Information Data |
| webmanifest | Progressive Web Application Manifest |
| webtemplate | iWeb Template |
| webtest | Microsoft Visual Studio WebTest Data |
| webtheme | iWeb Theme Template |
| wem | WinDev Flexible Model Data |
| wep | WinDev Compilation Error Data |
| wer | WinDev Replication Data |
| WinSQL E/R Diagram |
| wet | WinSQL Export Template |
| wew | Debugging Tools for Windows Saved Workspace |
| wfk | Delphi Runimage WFK Data |
| wfm | dBASE IV Form Data |
| wfo | Delphi Runimage File |
| wfs | Windows Script File |
| wgp | WinDev Internal Compilation Data |
| whl | Python Wheel Package |
