The X
extension name file type Classification
N Neko Bytecode File executable file
N-GAGE N-Gage Application game files
N2 Nitrous Minecraft GLSL Shader File 3D image file
N3D Nuclear 3D File 3D image file
N3D Super 3D Noah's Ark Data File game files
N3PMESH Knight Online 3D Mesh File game files
N3R Panasonic Security System Video File video file
N64 Nintendo 64 Emulator ROM File game files
NA2 Netscape Address Book File Other files
NAAC Namco AAC File audio file
NAM Aqua3D Network File data file
NAM G.E.C.K. Mod Data File game files
NAM MODFLOW Name File data file
NAP McAfee ePO Network Associates Package data file
NAP NAP Metafile vector image file
NAP Napster Secured Music File audio file
NAR Nexon game archive game files
NARC Nintendo DS Archive File game files
NARRATIVE Narrator Document audio file
NAS Nastran Input File data file
NATVIS Natvis VC++ Debugger Visualization File developer files
NAV Id Tech 3 Bot Navigation File game files
NAV MSN Application Extension File Other files
NAV2 WinAVI Temporary Navigation File Other files
NAZ Total Overdose Game Data File game files
NB Mathematica Notebook Spreadsheet file
NB Nota Bene File text file
NB0 Device Boot Loader Image System Files
NB7 NovaBACKUP Output File backup file
NBA Nero BackItUp Archive backup file
NBAK Neat Backup File backup file
NBC Next Byte Codes Source Code File developer files
NBD Data Backup Data File backup file
NBD NovaBACKUP File backup file
NBE Nessus Report File data file
NBF Backup Now Archive backup file
NBF Nokia Backup File backup file
NBH ROM Update Utility Image File System Files
NBI Nero BackItUp Information File backup file
NBK Data Backup Job File backup file
NBK NovaBACKUP Job File backup file
NBK SMART Notebook File data file
NBM NetBeans Module plugin file
NBP Mathematica Player Notebook File data file
NBP NeoBook Plugin File plugin file
NBS Minecraft Note Block Studio File audio file
NBS NTI Backup Set backup file
NBT Minecraft Named Binary Tag File game files
NBU Nokia Phone Backup File backup file
NC Mastercam Numerical Control File CAD file