Alphabetically: N
Extension File Description File Type
.n-gage
N-Gage Application
Game
.n3pmesh
Knight Online 3D Mesh File
Game
.n64
Nintendo 64 Emulator ROM File
Game
.na2
Netscape Address Book File
Misc
.nap
Napster Secured Music File
Audio
.narc
Nintendo DS Archive File
Game
.nav
Counter-Strike Bot Navigation File
Game
.nav2
WinAVI Temporary Navigation File
Misc
.naz
Total Overdose Game Data File
Game
.nb
Mathematica Notebook
Spreadsheet
.nb0
Device Boot Loader Image
System
.nb7
NovaBACKUP Output File
Backup
.nba
Nero BackItUp Archive
Backup
.nbf
Backup Now Archive
Backup
.nbi
Nero BackItUp Information File
Backup
.nbk
SMART Notebook File
Data
.nbp
Mathematica Player Notebook File
Data
.nbu
Nokia Phone Backup File
Backup
.nc
Mastercam Numerical Control File
CAD
.ncb
Visual C++ IntelliSense Database
Developer
.ncd
Nero CoverDesigner File
Raster Image
.ncf
No Cache File
Game
.ncfg
ArcGIS Explorer Configuration File
Settings
.nch
Outlook Express Folder File
Misc
.nco
Nero BackItUp File
Backup
.ncor
Adobe Encore Project File
Video
.ncr
NCR Image
Raster Image
.nct
Nero CoverDesigner Template
Raster Image
.ncw
Nero CoverDesigner Wizard File
Misc
.ncx
EPUB Navigation Control XML File
Misc
.nd
QuickBooks Network Data File
Settings
.nd5
Renamed NDS File
Misc
.ndb
ClamAV Extended Signature File
Data
.ndc
Personal Communications Settings File
Settings
.ndf
SQL Server Secondary Database File
Database
.ndif
Nokia Data File
Data
.ndk
Lotus Notes Design Elements File
Data
.nds
Nintendo DS Game ROM
Game
.ndx
dBASE Index File
Data
.nef
Nikon Electronic Format RAW Image File
Raster Image
.neo
NeoChrome Bitmap Image
Raster Image
.nes
Nintendo (NES) ROM File
Game
.net
netViz Project File
Data
.neta
Netica Binary File
Data
.neu
Pro/ENGINEER Neutral File
CAD
.nfb
Nokia Phone Backup File
Backup
.nfc
Nokia Phone Backup Copy File
Backup
.nff
Neutral File Format
3D Image
.nfi
Dreambox Disc Image
Disk Image
.nfo
Warez Information File
Text
.nfs
Network File System Temporary File
Misc
.ngage
N-Gage Game File
Game
.nib
Interface Resources
Developer
.nick
Outlook 2000 Nickname File
Misc
.nif
Gamebryo Model File
3D Image
.nitf
National Imagery Transmission Format File
Data
.njb
Nikon Photo Index File
Misc
.nji
Nero Job Information File
Settings
.nk2
Outlook 2002 Nickname File
Misc
.nki
KONTAKT Instrument File
Audio
.nls
Microsoft National Language Support File
System
.nltrack
NoLimits Roller Coaster Track File
Game
.nmc
ArcGIS Explorer Map Content File
GIS
.nmf
ArcGIS Explorer Map File
GIS
.nmind
NovaMind Mind Map File
Data
.nn
Nero CD File List
Disk Image
.nni
ANNI Neural Network Investing File
Data
.nnp
ANNI Neural Network Portfolio File
Data
.not
Notation File
Data
.notebook
SMART Notebook File
Data
.notes
Memento Notes File
Text
.now
Readme File
Text
.np
Portfolio NetPublish File
Data
.npl
Nokia Playlist File
Data
.npp
Art Explosion Publisher Pro Document
Layout
.npr
Nuendo Project File
Data
.npt
Portfolio NetPublish Template
Data
.nqc
Not Quite C Source Code File
Developer
.nra
Nero Audio Compilation
Audio
.nrb
Nero CD-ROM Boot Compilation
Data
.nrc
Nero Disc Compilation File
Data
.nrd
Nero DVD-Video Compilation File
Data
.nrg
Nero CD/DVD Image File
Disk Image
.nri
Nero ISO CD Compilation File
Disk Image
.nrl
Autonomy Interwoven Link File
Data
.nrm
Nero Mixed Mode CD Compilation
Data
.nrs
NovaBACKUP Restore Script
Backup
.nrt
Nokia Ringtone
Audio
.nru
Nero UDF CD-ROM Compilation
Data
.nrw
Nikon Raw Image File
Raster Image
.ns2
Lotus Notes 2 Database
Database
.ns3
Lotus Notes 3 Database
Database
.ns4
Lotus Notes 4 Database
Database
.nsa
Nullsoft Streaming Audio File
Audio
.nsbca
Nintendo DS Model Animation File
Game
.nsbmd
Nintendo DS Model File
Game
.nsbtx
Nintendo DS Model Texture File
Game
.nsf
Lotus Notes Database
Database
.nsq
NScheduler Data File
Data
.nss
Magnetic Screensaver File
Misc
.nst
NoiseTracker Module
Audio
.nsv
Nullsoft Streaming Video File
Video
.nt
Windows NT Startup File
System
.ntc
Camera Control Pro Custom Curves File
Settings
.ntf
MediaFACE II CD Label File
Misc
.nth
Nokia Series 40 Theme File
Misc
.ntn
NOTION Song File
Audio
.ntrk
Pacific FIghters Online Track File
Game
.nts
Lotus Notes Traveler Server Config File
Settings
.ntx
Clipper Index File
Data
.numbers
Numbers Spreadsheet File
Spreadsheet
.nup
Smart Security Update File
Misc
.nuv
NuppelVideo File
Video
.nv
MAME NVRAM File
Game
.nvc
NeroVision Express Project File
Video
.nvf
Creative Labs NVF Audio File
Audio
.nvl
UniChem Results File
Data
.nwc
NoteWorthy Composer File
Audio
.nwctxt
NoteWorthy Composer Text File
Text
.nwm
Sony NWM Display Screen File
Misc
.nwp
Magnetic Wallpaper File
Misc
.nwv
Dragon NaturallySpeaking User Archive
Settings
.nxc
NXC Source Code File
Developer
.nxg
eSite Builder NXG Web Page
Web
.ny
Nyquist Plug-in
Plugin
.nyf
myBase Database File
Database
.nzb
NewzBin Usenet Index File
Web