| File extension | The full name of the file |
|---|---|
| File extension N | Neko Bytecode Format |
| File extension N-GAGE | Nokia N-Gage Application Format |
| File extension N2 | Nitrous Minecraft GLSL Shader Format |
| File extension N2KM | Headshape Modding 3D Tool For 3D Studio Max Modding |
| File extension N3D | Nuclear Studio 3D Model Format |
| File extension N3PMESH | Knight Online 3D Mesh Format |
| File extension N64 | Nintendo 64 Emulation ROM Image Format |
| File extension N81 | Apple IOS Kernel Cache |
| File extension N88 | Apple IOS Kernel Cache |
| File extension N90 | Apple IOS Kernel Cache |
| File extension N90AP | IPhone Jailbreak Firmware |
| File extension N92 | Apple IOS Firmware |
| File extension NA2 | Seamonkey Address Book Format |
| File extension NAB | Netscape Communicator Addressbook |
| File extension NACL | NameCleaner |
| File extension NAF | TRAKTOR Service |
| File extension NAL | System Management Server Network Abstraction Layer |
| File extension NAM | DMAP Spreadsheet Format |
| File extension NAP | NAPLPS Vector Image Metafile |
| File extension NAPR | NameCleaner Preference |
| File extension NARC | Nintendo DS Archive Format |
| File extension NARRATIVE | Mariner Software Narrator Audio Document |
| File extension NAS | Nasal Script |
| File extension NAV | Counter-Strike Source CBot Navigation Mesh Format |
| File extension NAV2 | WinAVI Temporary Navigation Format |
| File extension NAVMAP | ESRI Data |
| File extension NAZ | Total Overdose Game Data Format |
| File extension NB | Mathematica Notebook Format |
| File extension NB0 | Google Android Compiled ROM Format |
| File extension NB2 | Newsbin Unfinished Download |
| File extension NB7 | NovaBACKUP Output Data Backup Format |
| File extension NBA | Nero BackItUp Archive Format |
| File extension NBAK | Neat Backup |
| File extension NBC | Next Byte Codes Source Code Format |
| File extension NBD | PC Backup Pro Backup Format |
| File extension NBE | Nessus Scan Result Format |
| File extension NBF | Backup NOW! Backup Archive Format |
| File extension NBFC | Nintendo DS Nitro Basic File Character |
| File extension NBFP | Nintedo DS Nitro Basic File Palette |
| File extension NBFS | Nintendo DS Nitro Basic File Screen |
| File extension NBH | HTC ROM Update Utility ROM Image Format |
| File extension NBI | Nero BackItUp Backup Format |
| File extension NBIN | Compiled NASL Script |
| File extension NBK | NovaBACKUP Script Format |
| File extension NBL | Phantasy Star Universe |
| File extension NBM | NetBeans Module Format |
| File extension NBP | Mathematica Notebook Format |
| File extension NBR | Saved Benchmark Result |
| File extension NBS | NTI Backup Now Format Based Backup Set Format |
| File extension NBT | Minecraft Named Binary Tag Format |
| File extension NBU | Nokia PC Suite 6.82+ Backup Format |
| File extension NBZ | ArcSoft Total Media Backup & Record Backup |
| File extension NC | Unidata Network Common Data Form Format |
| File extension NC1 | Xsteel CAD |
| File extension NC2 | NewsLeecher Cache |
| File extension NC? | FlashGet Download Manager Incomplete Download |
| File extension NCA | Nikon Capture Color Adjustment |
| File extension NCB | Microsoft Developer Studio Non-compiled Browse Format |
| File extension NCC | CNC (Computer Numeric Control) Control File (CamView 3D) |
| File extension NCD | NTI CD-Maker Disk Image |
| File extension NCER | Nintendo DS Nitro Cell Resource |
| File extension NCF | Steam Client Game Configuration Format |
| File extension NCFG | ArcGIS Explorer Configuration Format |
| File extension NCGR | Nintendo DS Title Graphics Format |
| File extension NCH | Microsoft Outlook Express Email Tree |
| File extension NCI | Mastercam Toolpath |
| File extension NCLK | HTML Formatted Text |
| File extension NCLR | Nintendo DS Color Palette Format |
| File extension NCO | Nero BackItUp Compressed Backup Format |
| File extension NCOMP | SAM Dirichlet Mixture Prior Library |
| File extension NCOR | Adobe Encore Project Format |
| File extension NCORX | Adobe Encore Project Format |
| File extension NCP | NHL Ice Hockey 2002 User NHLcards |
| File extension NCR | NCR Image Image Format |
| File extension NCS | Bioware Aurora / Obsidian Electron Compiled Script |
| File extension NCSS | NCSS Data |
| File extension NCT | CoverDesigner Template |
| File extension NCV | Nikon Capture Curves |
| File extension NCW | Nero CoverDesigner Picture Template Format |
| File extension NCX | Navigation Control File For XML |
| File extension NCZ | Netcad Drawing |
| File extension ND | QuickBooks Network Data Format |
| File extension ND5 | Nintendo DS Game ROM Format |
| File extension NDA | Nero BackItUp Drive Image |
| File extension NDB | ClamAV Extended Signature Format |
| File extension NDC | IBM Personal Communications Settings Format |
| File extension NDD | Nikon Capture Digital DEE |
| File extension NDF | Microsoft SQL Server Secondary Data Format |
| File extension NDIF | Apple NDIF Disk Image Format |
| File extension NDK | Lotus Notes Database Design Elements |
| File extension NDL | Lotus Notes Data Format |
| File extension NDM | Enemy Territory Quake Wars Demo |
| File extension NDO | Nendo |
| File extension NDOC | Naver Word |
| File extension NDOTS | Ribbons Ndots |
| File extension NDP | Nick-O-Matic Design Factory Project |
| File extension NDR | RightFax Executable |
| File extension NDS | Nintendo DS Game ROM Image Format |
| File extension NDT | NEPLAN External Program Import Or Export |
| File extension NDU | Symbian Phone Backup |
| File extension NDV | ENVI N-D Visualizer State |
| File extension NDW | Allplan Drawing |
| File extension NDX | DBase Index Format |
| File extension NE0 | NetBSD Config |
| File extension NE1 | OM2 OMALI NENA Version 1 Document |
| File extension NE3 | OM2 OMALI NENA Document |
| File extension NED | OMNet++ Network Description Format |
| File extension NEF | Nikon Digital SLR Camera RAW Image Format |
| File extension NEKO | Neko Source Code Format |
| File extension NEN | Nick-O-Matic Design Factory Project |
| File extension NEO | Atari NeoChrome Bitmap Image |
| File extension NEOSAVE | Neopets Puzzle Adventure Saved Game |
| File extension NEPPRJ | NEPLAN Project |
| File extension NES | Nintendo Entertainment System ROM Image |
| File extension NESSUS | Nessus Network Security Scanner Format |
| File extension NET | Network Configuration Format |
| File extension NETA | Netica Bayesian Network Binary Format |
| File extension NETBOOT | Unix Netboot Script |
| File extension NETKIT | Gnome Desktop |
| File extension NETRC | .netrc TCP/IP Settings |
| File extension NETSH | Netsh File Extension |
| File extension NETSPD | NetSpot Survey Project Format |
| File extension NETSPM | NetSpot Map Format |
| File extension NETWORKCONNECT | Apple Network Connect Document |
| File extension NEU | Pro/Engineer Neutral Format |
| File extension NEULICENSE | Neu License |
| File extension NEW | Ameco Embroidery Format |
| File extension NEWSLOC | Apple Mac OS X Finder News Internet Location |
| File extension NEX | Neuroexplorer Neurological Data |
| File extension NEXE | Google Chrome Native Client Executable Format |
| File extension NEZ | NES ROM Emulator Image |
| File extension NFB | Nokia PC Suite Phone Backup Format |
| File extension NFC | Nokia PC Suite Phone Backup Format |
| File extension NFF | Haines Neutral File Format |
| File extension NFG | NewsBin Configuration |
| File extension NFI | Dreambox Disc Image Format |
| File extension NFL | AutoCAD Multiline Filter List |
| File extension NFM | Delphi .NET Form Format |
| File extension NFO | Information Readme Text Format |
| File extension NFP | Archive |
| File extension NFS | Network Format System Temporary Format |
| File extension NFS11SAVE | Need For Speed: Hot Pursuit 2010 Configuration Format |
| File extension NFS13SAVE | Need For Speed: Most Wanted Saved Game |
| File extension NFT | NetObjects Fusion System |
| File extension NFTR | Nintendo DS Font Type Format |
| File extension NFX | NetObjects Fusion Components Bbscomp |
| File extension NGAGE | Nokia N-Gage Game Format |
| File extension NGC | Xilinx Integrated Software Environment Generated Format |
| File extension NGD | NimbleGen Gene Description Format |
| File extension NGG | Nokia Group Graphics Image Format |
| File extension NGH | Neighbours From Hell 2 Saved Game |
| File extension NGLOSS | Nisus Writer Pro Glossary |
| File extension NGN | Fly! Engine Specification |
| File extension NGO | Nick-O-Matic Design Factory Project |
| File extension NGP | Neo Geo Pocket ROM Image Format |
| File extension NGR | NEPLAN Graphic Data |
| File extension NGRR | GUITAR RIG Sound |
| File extension NGS | NGSSniff |
| File extension NGT | NONI GPSPlot GIS Format |
| File extension NH | NetHack Defaults |
| File extension NHA | Native Noah Format |
| File extension NHB | No Hands Backup Backup Description |
| File extension NHD | Nero AVHCD DVD Compilation |
| File extension NHF | Nero HFS-CD Compilation |
| File extension NHL | Nhl Ice Hockey Game 2002 User Teams |
| File extension NHN | Ijji REACTOR Html Launch |
| File extension NHP | NOAA Hydrophone Data |
| File extension NHS | NHibernate |
| File extension NHV | Nero HD-BURN-Video Compilation |
| File extension NI | NetObjects Fusion Preview |
| File extension NIA | Nikon Capture Image Adjustment |
| File extension NIB | Interface Builder User Interface Resources |
| File extension NICK | Microsoft Outlook Nickname Format |
| File extension NICNT | Native Instruments KONTAKT Library |
| File extension NICRASH | TRAKTOR Crash Report |
| File extension NID | Nikon Capture IPTC Data |
| File extension NIF | GameBryo Format |
| File extension NIFF | NIFF Navy Image File Format |
| File extension NIL | Norton Icon Library |
| File extension NIM | Nimrod Source Code Format |
| File extension NIP | Microsoft DRM (Digital Right Management) |
| File extension NIST | Audio |
| File extension NIT | ArcView INFO Table Definitions |
| File extension NITF | National Imagery Transmission Format |
| File extension NIX | Rational XDE |
| File extension NJB | Nikon Digital SLR Camera Image Index Format |
| File extension NJF | IBM Lotus Domino |
| File extension NJI | Nero BackItUp Job Format |
| File extension NJT | Nero BackItUp Job Template |
| File extension NJX | NJStar Document Format |
| File extension NK | NUKE Script Format |
| File extension NK2 | Microsoft Outlook Contacts AutoComplete Format |
| File extension NKB | Kontakt Audio Bank |
| File extension NKC | Native Instruments KONTAKT Library Data Format |
| File extension NKD | Nikon ViewNX Thumbnail Cache |
| File extension NKI | Native Instruments Instruments Sample Format |
| File extension NKM | Native Instruments KONTAKT Format |
| File extension NKP | Kontakt Saved Presets |
| File extension NKR | KONTAKT Resource Container |
| File extension NKS | Native Instruments Archive Format |
| File extension NKX | Native Instruments Monolith Format |
| File extension NL | Norton Desktop Icon Library |
| File extension NL2 | ESignal Market Depth |
| File extension NLANG3 | Ashampoo Internet Accelerator Language |
| File extension NLB | Colin McRae Rally Network Leader Boards Game |
| File extension NLC | Nero Linux Compilation |
| File extension NLELEM | NoLimits Rollercoaster Simulation Track Element Format |
| File extension NLG | Nestopia Language |
| File extension NLK | Outlook 2003 E-mail Cookie |
| File extension NLM | Nokia Logo File Image Format |
| File extension NLOGO | NetLogo Model Format |
| File extension NLOGO3D | NetLogo 3D Model Format |
| File extension NLPD | Navicat For SQLite Data Synchronization Profile |
| File extension NLPE | Navicat For SQLite Exported Table |
| File extension NLPEQ | Navicat For SQLite Export Query Result Profile |
| File extension NLPEV | Navicat Export View Result Profile |
| File extension NLPI | Navicat For SQLite Import Wizard Profile |
| File extension NLPT | Navicat For SQLite Data Transfer Profile |
| File extension NLPX | Mad Data NoLimits Game Data Format |
| File extension NLR | NLREG Nonlinear Regression Control |
| File extension NLS | Microsoft National Language Support Format |
| File extension NLTRACK | NoLimits Roller Coaster Track Format |
| File extension NLV | Nikon Capture LCHE Editor |
| File extension NM | Space Engine Nebula Model Format |
| File extension NM2 | Navitel Navigator Map Format |
| File extension NM3 | Navitel Navigator 5.0 Map Format |
| File extension NM5 | NovaMind Mind Map |
| File extension NM7 | Navitel Navigator Map |
| File extension NMAP | NaviComputer Map Format |
| File extension NMBD | Samba Log |
| File extension NMBTEMPLATE | Apple Numbers Spreadsheet Template Format |
| File extension NMC | ArcGIS Explorer Map Content Format |
| File extension NMD | Nero MiniDVD Compilation |
| File extension NMF | ArcGIS Explorer Map Format |
| File extension NMI | SwordSearcher |
| File extension NMIND | NovaMind Mind Map Format |
| File extension NMK | Microsoft Program Maintenance Utility Make |
| File extension NML | Traktor Collection Format |
| File extension NMM | Microsoft 3D Movie Maker Video |
| File extension NMO | Virtools Behavioral Objects |
| File extension NMP | Neopaint Mask Image Format |
| File extension NMR | WxNUTS Histogram |
| File extension NMS | Numega SoftICE Loader File Including Debugging Info |
| File extension NMSV | Native Instruments MASSIVE Audio |
| File extension NMU | EMC Documentum Client Library Query Cache |
| File extension NMV | Nintendulator Movie Capture |
| File extension NMW | Microsoft NetMeeting T126_Whiteboard |
| File extension NN | Nero CD List Format |
| File extension NNI | ANNI Neural Network Investing Format |
| File extension NNP | ANNI Neural Network Portfolio Format |
| File extension NNR | Nikon Capture Noise Reduction |
| File extension NNTP | NewsWatcher |
| File extension NNVS | NextNine VNC Player VNC Session |
| File extension NNW | NeuralWare NeuralWorks |
| File extension NOB | Silver Game Data |
| File extension NOD | NetObjects Fusion Nodes Format |
| File extension NODES | PowerFolder Nodes |
| File extension NOF | NetObject Fusion 5.0 |
| File extension NOINDEX | Mac OS X Spotlight Index |
| File extension NOKIA | Nokia Proprietary Ringtone Format |
| File extension NOKOGIRI | Nokogiri Source |
| File extension NOKTXT | Nokia Proprietary Ringtone Text Format |
| File extension NOL | Nokia Operator Logo Image Format |
| File extension NOMEDIA | Google Android OS System Format |
| File extension NON | Star Wars: Tie Fighter Mouse Options |
| File extension NOP | Nokia Smart Shoot RAW Photo |
| File extension NOPD | Navicat For Oracle Data Synchronization Profile |
| File extension NOPE | Navicat For Oracle Exported Table |
| File extension NOPEM | Navicat For Oracle Export Materialized View Profile |
| File extension NOPEQ | Navicat For Oracle Export Query Result Profile |
| File extension NOPEV | Navicat For Oracle Export View Result Profile |
| File extension NOPI | Navicat For Oracle Import Wizard Profile |
| File extension NOPT | Navicat For Oracle Data Transfer Profile |
| File extension NOR | Norwegian Localization |
| File extension NOS | JDOS System |
| File extension NOT | Notation Or Note Format |
| File extension NOTE | Notability For IPad Note Format |
| File extension NOTEBOOK | SMART Notebook Format |
| File extension NOTES | Memento Note Format |
| File extension NOTX | E-Sword Study |
| File extension NOT_TERMINATED | Mac OS X Audit Log |
| File extension NOV | NI Battery Cache |
| File extension NOVS | Novell NetWare Control Center |
| File extension NOW | Visual FoxPro Documenting Wizard List |
| File extension NOX | Wave IRIS NOx |
| File extension NP | Portfolio NetPublish Web Template Format |
| File extension NPA | ReliaSoft Weibull++ |
| File extension NPB | Navicat For MySQL Backup Profile |
| File extension NPC | QuickBooks Online Banking |
| File extension NPD | Navicat For MySQL Data Synchronize Profile |
| File extension NPDT | Mac Text |
| File extension NPE | Navicat For MySQL Export Profile |
| File extension NPEQ | Navicat For MySQL Export Query Result Profile |
| File extension NPEV | Navicat For MySQL Export View Result Profile |
| File extension NPF | NTI Backup Format |
| File extension NPFX | Norton Internet Security Settings Format |
| File extension NPG | Magentic Download |
| File extension NPI | Navicat For MySQL Import Wizard Profile |
| File extension NPJ | Navicat For MySQL Batch Job |
| File extension NPK | N-Track Studio Peak |
| File extension NPL | Nokia Audio Format |
| File extension NPM | CorelDRAW 10 Draw Media Lines |
| File extension NPN | Canvas Neon Pen |
| File extension NPO | Nonpareil Redundancy Summary |
| File extension NPP | Art Explosion Publisher Pro Document Format |
| File extension NPPD | Navicat For PostgreSQL Data Synchronization Profile |
| File extension NPPE | Navicat For PostgreSQL Exported Table |
| File extension NPPEQ | Navicat For PostgreSQL Export Query Result Profile |
| File extension NPPEV | Navicat For PostgreSQL Export View Result Profile |
| File extension NPPI | Navicat For PostgreSQL Import Wizard Profile |
| File extension NPPT | Navicat For PostgreSQL Data Transfer Profile |
| File extension NPR | Nuendo Format |
| File extension NPS | NTI Backup Now Drive Based Backup Set Format |
| File extension NPT | Navicat For MySQL Data Transfer Profile Format |
| File extension NPV | Pixbend Player Pixbend Media |
| File extension NPW | NPassword |
| File extension NPX | TroublePix Licence |
| File extension NPZ | GameGuard Update |
| File extension NQA | NQuery Advisor Data |
| File extension NQC | NQC Not Quite C Source Code Format |
| File extension NQF | NOD32 Quarantine |
| File extension NQI | NOD32 Quarantine |
| File extension NQST | SoundEdit |
| File extension NR-VMP | BrainVoyager QX Native Resolution Volume Map |
| File extension NR3 | Nero CD-ROM (MP3) Compilation |
| File extension NR4 | Nero CD-ROM (AAC) Compilation |
| File extension NRA | Nero Audio-CD Compilation Format |
| File extension NRB | Nero CD-ROM Boot Compilation Format |
| File extension NRBAK | Neat Backup |
| File extension NRC | Nero UDF/ISO CD-ROM Compilation |
| File extension NRD | Nero DVD-Video Compilation Format |
| File extension NRE | Nero CD EXTRA Compilation |
| File extension NRF | IBM Domino Notes Redirection |
| File extension NRG | Nero-Burning ROM CD Or DVD Image Format |
| File extension NRH | Nero Hybrid CD-ROM Compilation |
| File extension NRI | Nero CD-ROM (ISO) Compilation Format |
| File extension NRJ | Nero JukeBox Compilation |
| File extension NRL | Autonomy Interwoven Link Format |
| File extension NRM | Nero Mixed-Mode-CD Compilation Format |
| File extension NRMLIB | Neat Document Library |
| File extension NRP | ASP.NET Report Maker Report |
| File extension NRS | Nero CD-ROM Boot EFI Compilation Format |
| File extension NRT | Nokia Ringtone Format |
| File extension NRU | Nero UDF CD-ROM Compilation Format |
| File extension NRV | Nero Video-CD Compilation |
| File extension NRW | Nikon RAW Image Format |
| File extension NRX | NeatReceipts SCANALIZER Expense Report |
| File extension NS | NSwin Project |
| File extension NS1 | NetStumbler NS1 Log |
| File extension NS2 | Lotus Notes Database Format |
| File extension NS3 | Lotus Notes Database Format |
| File extension NS4 | Lotus Notes Database Format |
| File extension NSA | Nullsoft Winamp Streaming Audio Format |
| File extension NSBCA | Nintendo DS Model Animation Format |
| File extension NSBMD | Nintendo DS Game 3D Model Format |
| File extension NSBTA | Nintendo DS Texture Animation Format |
| File extension NSBTX | Nintendo DS Model Texture Format |
| File extension NSC | Windows Media Station |
| File extension NSCR | Nintendo DS Title Screen Format |
| File extension NSD | Norton System Doctor Sensor Configuration |
| File extension NSE | Nmap Security Scanner Scripting Engine |
| File extension NSF | Lotus Notes Database Format |
| File extension NSFE | Nintendo NES Audio File With Enhanced Tags |
| File extension NSG | Lotus Notes Database |
| File extension NSH | Lotus Notes Database Format |
| File extension NSI | Symantec Shared Format |
| File extension NSLLOC | Apple Mac OS X Finder NSL Internet Location |
| File extension NSPD | Navicat For SQL Server Data Synchronization Profile |
| File extension NSPE | Navicat For SQL Server Exported Table |
| File extension NSPEQ | Navicat For SQL Server Export Query Result Profile |
| File extension NSPEV | Navicat For SQL Server Export View Result Profile |
| File extension NSPI | Navicat For SQL Server Import Wizard Profile |
| File extension NSPL | Netscape Navigator Plugin |
| File extension NSPT | Navicat For SQL Server Data Transfer Profile |
| File extension NSQ | NScheduler Qlikview Schedule Format |
| File extension NSR | Nessus Project Format |
| File extension NSS | Magentic Screensaver Format |
| File extension NST | NoiseTracker Music Module |
| File extension NSU | NVIDIA NTune Command System Profile Settings |
| File extension NSV | Nullsoft Winamp Video Format |
| File extension NSX | Apollo Server Database Index |
| File extension NSZ | Benchmark Data File Used By NVidia NTune Tool |
| File extension NT | Windows NT Command Script Format |
| File extension NT7 | Orchida Knitting System Pattern |
| File extension NTC | Nikon Camera Control Pro Custom Curves Format |
| File extension NTD | NinjaTrader |
| File extension NTF | Lotus Notes Database Template Format |
| File extension NTFP | Nintendo DS Nitro File Palette |
| File extension NTFS | NTFS Partition Format |
| File extension NTH | Nokia Series 40 And 60 Theme Format |
| File extension NTJ | Junction Box Backup |
| File extension NTL | Diablo 2 Mod D2NT Script |
| File extension NTM | Navitel Map |
| File extension NTN | NOTION Song Format |
| File extension NTP | MediaFACE CD Label |
| File extension NTRK | Pacific Fighters Track Format |
| File extension NTS | Lotus Notes Traveler Server Config Format |
| File extension NTT | MediaFACE Template |
| File extension NTV | PatternSmith Import |
| File extension NTW | Noteworthy Composer Song |
| File extension NTX | Clipper Database Index Format |
| File extension NTZ | InVircible Antivirus Directory Integrity Information |
| File extension NU4 | Norton Utilities DLL Root |
| File extension NUB | Xerox FreeFlow NUB Init |
| File extension NUC | PAML Data |
| File extension NUD | Now Up-To-Date Calendar Data |
| File extension NUF | Procomm Plus New User Message |
| File extension NUGET | NuGet Package |
| File extension NUGG | SAP Generated Nugg |
| File extension NUM | Diction |
| File extension NUMBERS | Apple Numbers Spreadsheet Format |
| File extension NUMBERS-TEF | Apple Numbers ICloud Spreadsheet Format |
| File extension NUP | ESET Nod32 Antivirus Update Format |
| File extension NUPKG | NuGet Source Code Package Format |
| File extension NUSPEC | NuGet Settings Format |
| File extension NUT | NUT Open Container Format |
| File extension NUV | MythTV NuppelVideo Video Format |
| File extension NV | MAME NVRAM Format |
| File extension NV2 | NewViews 2 Accounting Data Format |
| File extension NVAVI | Split AVI Audio Video Interchange Format |
| File extension NVC | Nero Vision Express Project Format |
| File extension NVD | Navidoc |
| File extension NVDL | NVDL Script |
| File extension NVF | Creative Labs Nomad Voice Format |
| File extension NVI | NVidia Graphics Card Driver Settings Format |
| File extension NVJ | Net Vampire Job |
| File extension NVL | UniChem Results Format |
| File extension NVM | PlayStation 2 BIOS Configuration Format |
| File extension NVP | Net Vampire Job |
| File extension NVR | NeverForget |
| File extension NVRAM | VMware VM BIOS State Format |
| File extension NVSG | NVIDIA SceniX Scene Management Engine Format |
| File extension NVT | NeuraLynx Video Tracker |
| File extension NVX | NvStructural Extension |
| File extension NVZ | Novelty Actor |
| File extension NW3 | Novell Netware.3x |
| File extension NW4 | Netware.4x |
| File extension NWA | Natural Windows Animation |
| File extension NWB | Nikon Capture White Balance |
| File extension NWBAK | Neat Backup |
| File extension NWC | Noteworthy Composer Song Format |
| File extension NWCAB | Neat Software Cabinet |
| File extension NWCP | Nisus Writer Pro Clipboard Document |
| File extension NWCTXT | NoteWorthy Composer Text Format |
| File extension NWD | NavisWorks Snapshot Format |
| File extension NWDB | NeatReceipts Database |
| File extension NWELICENSE | Nisus Writer Pro License |
| File extension NWF | NavisWorks Project Format |
| File extension NWM | Sony NWM Display Screen Format |
| File extension NWN | Bioware Aurora Engine Module |
| File extension NWP | Noteworthy Player Format Type |
| File extension NWS | Microsoft Outlook Express News Message Format |
| File extension NWUT | NetWare Tools |
| File extension NWV | Dragon NaturallySpeaking User Archive Format |
| File extension NWX | Outlaws Choreography |
| File extension NW_ | Noteworthy Composer Compressed |
| File extension NX1 | NexusDB Database |
| File extension NX2 | NexusDB Database |
| File extension NXB | Nexus Race Software Raw Data |
| File extension NXC | NXC Not EXactly C Source Code Format |
| File extension NXD | NdxCards Index Card Project |
| File extension NXG | ESite Builder NXG Web Page Format |
| File extension NXN | Avid Interplay Permanent License |
| File extension NXT | NeXT Sound |
| File extension NX^D | WriteNow 2 Document |
| File extension NY | Nyquist Plug-in Format |
| File extension NYF | MyBase Database Format |
| File extension NZ | NanoZip Compressed Archive |
| File extension NZB | Newzbin Download Pointer Format |
| File extension NZL | Corel Painter Nozzle |
| File extension NZN | RMCProfile List |
File extensions in alphabetical order: N
The list of file extensions, sorted alphabetically, beginning with the letter N