| vspscc | Visual Studio Project Source Control |
| vspx | Visual Studio Profiling Report Data |
| vsscc | Visual Studio Solution Source Control Temporary File |
| vssscc | Visual Studio Solution Source Control |
| vstax | Visual Studio Tools for Applications Template |
| vstemplate | Visual Studio Project Template Metadata |
| vsz | Visual Studio Wizard |
| vta | Valve Source Flex Animation Data |
| vtf | Valve Source Texture Data |
| vtk | ParaView VTK Data File |
| vtl | Velocity Template Language File |
| vtm | Visual Tool Markup Language Document |
| vtml | Visual Tool Markup Language |
| vtml | Visual Tool Markup Language Document |
| vtp | ParaView VTK Poly Data |
| vtr | ParaView VTK Rectilinear Grid |
| vtu | ParaView VTK Unstructured Grid |
| vtx | Valve Source Mesh Strip Data |
| vue | dBASE IV View File |
| vue | FoxPro 2 View |
| vvd | Valve Source Model Vertex Data |
| vvp | Icarus Verilog Compiled Program |
| vvt | VersaPro Variable View Table |
| vwf | Altera Quartus II Vector Waveform File |
| w | OpenEdge ABL Procedure File |
| w32 | Win32 Makefile |
| wadcfg | Microsoft Azure Diagnostics Configuration Data |
| wasm | WebAssembly Binary Code |
| wast | WebAssembly Textual Code |
| wat | WebAssembly Textual Code |
| wbo | DataFlex Web Business Object |
| wcp_settings | Alpha Five Web Project Settings |
| wct | Visual Basic WebClass HTML Template |
| wde | WinDev Report File |
| wdg | WinDev Procedures |