| nv2 | CART Grove Data |
| nv2 | Navionics Chart |
| nv2 | NewViews v2 Database |
| nv2 | CART Navigator Data |
| nv3 | CART Navigator Data |
| nvd | NetworkView Data |
| nve | MB-System MBnavedit Edited Navigation |
| nvi | CARAIBES Navigation Data |
| nvl | UniChem Results |
| nvm | PCSX2 Dumped BIOS Configuration File |
| nvp | Net Vampire Job |
| nvp | Nvidia Control Panel Profile |
| nvr | NeverForget Reminder Data |
| nvram | VMware Virtual Machine NVRAM Data |
| nvt | Novelty Template |
| nw | NWChem Input File |
| nwa | WindowBlinds Natural Windows Animation |
| nwb | Network Workbench Data |
| nwbak | NeatWorks Database Backup |
| nwc | NavisWorks Cache File |
| nwcab | Neat Cabinet |
| nwdb | Neat Database |
| nwelicense | Nisus Writer Pro License Data |
| nwg | NetEase Game Replay |
| nwk | Nano Wiki Engine Data |
| nwo | NWChem Output File |
| nwp | NavisWorks Presenter Material Palette |
| nwv | Dragon NaturallySpeaking User Archive |
| nx1 | NexusDB Database |
| nx2 | NexusDB v2 Database |
| nxe | LonWorks Neuron Application Image File |
| nxl | NextLabs SkyDRM Encrypted Data |
| nxm | Nexus Mod Manager Link |
| nxp | NEXUS Expansion Pack |
| nxs | NEXUS Data File |
