| v3m | Vector Art 3D Machinist Data |
| v3p | RobotWorks V3P Data |
| v4e | SAP SuccessFactors Exported Data |
| v5d | Vis5D Dataset Object |
| v64 | N64 ROM Image Doctor V64 |
| va | Vector Approximation Data |
| vac | Vocaloid Accessory File |
| val | Paradox Table Validation Data |
| vamas | VAMAS ISO14976 Data |
| van | Vista Pro Animation |
| var | EES Variable Data |
| vars | abcAVI Tag Editor Query Variants |
| vat | Vala Content Management Server Data |
| vault | Fontcase Vault File |
| vb | Virtual Boy ROM |
| vbak | Autodesk Vault Backup Data |
| vbb | VirtualBoss Backup Data |
| vbd | Visual Basic ActiveX Document |
| vbf | VersaCheck Backup File |
| vbj | BPR2000 Job |
| vbo | Racelogic PerformanceBox ASCII Data |
| vbox-extpack | Oracle VM VirtualBox Extension Pack |
| vbt | Spyware Doctor Temporary Scan |
| vbu | vBProductMaker vBulletin Product Data |
| vc | Vivid 2.0 Color Definition |
| vc7 | DaVis Vector Data |
| vcal | iCal Document |
| vcc | Velocitek Control Center Data |
| vcd | Lattice Reveal Analyzer Exported Waveform |
| vcex | ProfExam Exam Data |
| vcf | 1000 Genomes Project Text Variant Call Format File |
| vck | Nexpose Vulnerability Check Data |
| vcmf | VAIO Content Manager Metadata |
| vco | Virtual CD Collection |
| vcp | Casio ClassPad 300 Virtual ClassPad |