M-N
M
Program file (Matlab)
M
Macro module (Brief)
M
Standard package (Mathematica)
M11
Text file (MASS11)
M1V
MPEG-related file (MIME type 'mpeg')
M3
source code file (Modula 3)
M3D
3D animation (Corel Motion)
M3U
MPEG URL (MIME audio file) (MP3 Playlist)
M4
M4 Preprocessor file (Unix)
M_U
Hard Drive Boot sector backup (MazeGold)
MA3
Macro (Harvard Graphics 3.0)
MAC
Image (MacPaint)
MAC
Macro (Generic)
MAD
Module (Microsoft Access)
MAF
Form (Microsoft Access)
MAG
A graphics format found in some Japanese files
MAG
MAG graphics format created by Woody Lynn (MPS Magro Paint System)
MAGIC
Configuration file (Magic Mail Monitor)
MAI
Mail (VAX)
MAK
Project (Visual Basic or Microsoft C++)
MAK
Makefile (Generic)
MAM
Macro (Microsoft Access)
MAN
Manual page output (Unix)
MAN
Command module (Unix)
MAP
Map file (Generic)
MAP
WAD game file (Duke Nukem 3D)
MAP
Color pallette (Generic)
MAP
Format data (Micrografx Picture Publisher)
MAP
Linker map file
MAP
Map file used for color choices (Pro/Engineer)
MAP
Map file (Atlas MapMaker)
MAP
Network map (AccView)
MAQ
Query (Microsoft Access)
MAR
Report (Microsoft Access)
MAR
Assembly program (VAX Macro)
MAS
Graphics file (Lotus Freelance Smartmaster)
MAT
Binary file (Matlab)
MAT
Table (Microsoft Access)
MAUD
Sample format (Maud)
MAX
3D scene (Kinetix 3D Studio Max)
MAX
Document (Paperport)
MAX
Layout file (OrCad)
MAX
Source code (MAX)
MAZ
Maze data file (Hover)
MAZ
A format use by Division's dVS/dVISE
MB
Memo field values for database (Paradox)
MB1
Data file (Apogee Monster Bash)
MBK
Multiple index archive (dBase IV)
MBOX
Mailbox file (Berkeley Unix)
MBX
Extension Microsoft Outlook adds to saved email, Eudora mailboxes
MCC
Calling card (Dialer10)
MCC
Configuration file (MathCad)
MCD
Document (MathCad)
MCF
Font file (MathCad)
MCF
Magic control file
MCI
Command script (Media Control Interface)
MCP
Project file (Metrowerks CodeWarrior)
MCP
Application script (Capsule)
MCP
Printer driver (MathCad)
MCR
Keyboard macro file (DataCad)
MCW
Document (Microsoft Word for Macintosh)
MCW
Text document (MacWrite II)
MD
Compressed archive (MDCD)
MDA
Add-in file (Microsoft Access)
MDA
Workgroup (Microsoft Access version 2)
MDB
Database (Microsoft Access)
MDE
MDE file (Microsoft Access)
MDL
Spreadsheet (CA-Compete!)
MDL
Music module (MOD) (Digital Trakker)
MDL
Model (3D Design Plus)
MDL
Model file (Quake)
MDL
Model file element (Rational Rose)
MDM
Modem definition (Telix)
MDN
Blank database template (Microsoft Access)
MDT
Data table (Microsoft ILink incremental linker)
MDT
Add-in file (Data) (Microsoft Access)
MDW
Workgroup (Microsoft Access)
MDX
Multiple index file (dBase IV)
MDZ
Wizard template (Microsoft Access)
ME
ASCII text document (Generic)
MEB
Macro editor bottom overflow library (Microsoft WordPerfect for Windows)
MED
Music module (MOD) (OctaMed Music Editor)
MED
Macro editor delete save file (Microsoft WordPerfect for Windows)
MEM
Macro editor macro (Microsoft WordPerfect for Windows)
MEM
Memory variable save file (Clipper)
MEM
Memory variable save file (dBase IV)
MEM
Memory variable save file (Microsoft FoxPro)
MEQ
Macro editor print queue file (Microsoft WordPerfect for Windows Library)
MER
Format for interchanging spreadsheet/database data; recognized by Filemaker, Excel, and others
MER
Macro editor resident area (Microsoft WordPerfect for Windows Library)
MES
Macro editor workspace file (Microsoft WordPerfect for Windows)
MES
Message file (Generic)
MET
Presentation Manager metafile
MET
Macro editor top overflow file (Microsoft WordPerfect for Windows Library)
MET
Document file (OmniPage Pro)
MEU
Menu group (DOS Shell)
MEX
Executable command (Matlab)
MEX
Macro editor expound file (Microsoft WordPerfect for Windows)
MF
Metafont text file
MFG
Manufacturing file (Pro/ENGINEER)
MGF
Font file (MicroGrafx)
MGF
A file in a Materials and Geometry Format
MHT
MHTML document (Microsoft)
MHTM
MHTML document (MIME)
MHTML
MHTML document (MIME)
MI
Data file (Cocreate ME10)
MI
Miscellaneous file (Generic)
MIC
Image Composer file (Microsoft)
MID
MIDI music
MIF
Interchange format (Adobe FramMaker)
MIFF
Machine Independent File (Generic)
MII
Datafile (MicroStat-II)
MIM
A multipart file in the Multi-Purpose Internet Mail Extensions (MIME) format; often created as the result of sending e-mail with attachments in AOL. The files in a multipart MIM file can be "opened" (unarchived and separated into individual files) using Winzip or a similar program.
MIME
See MIM.
MIX
Object file (Power C)
MIX
Picture file (Microsoft PhotoDraw 2000)
MIX
Picture file (Microsoft Picture-It!)
MIX
Package file (Command & Conquer)
MIX
Resource archive (Westwood Studios)
MJF
Audio file similar to MP3 (Mjuice) (Opens with WinAmp)
MK
Makefile (Generic)
MKE
Makefile (Microsoft Windows SDK)
MKI
Graphic Image (MagView 5.0) (Japanese)
MKS
Datafile (TACT)
ML3
Project file (Milestones 3.x)
MLB
Macro library (Symphony)
MLI
A file in 3D Studio's Material-Library format
MLID
Muliple link interface driver file (Generic)
MLM
Groupwise email file (Novell Groupwise)
MM
Text file (MultiMate Advantage II)
MMC
Catalog file (Microsoft Clip Gallery 5.x)
MMF
Mail message file (Microsoft Mail)
MME
A multipart file in the Multi-Purpose Internet Mail Extensions (MIME) format; often created as the result of sending e-mail with attachments in AOL. The files in a multipart MME file can be "opened" (unarchived and separated into individual files) using Winzip or a similar program.
MMF
Meal Master Format, a recipe catologing format
MMF
Mail file (Microsoft)
MMG
Beyond 20/20 table or aggregate data file
MML
Bulk mail file (Created by MyMailList)
MMM
Multimedia movie (Microsoft)
MMM
Multimedia movie (MacroMind Director 3.x)
MMO
Memo Writer file (RapidFile)
MMP
MindManager file (MindMapor)
MMP
Output video (Bravado)
MN2
Mission file (Descent2)
MN3
Mission file (Descent3)
MND
Menu source (AutoCAD Menu Compiler)
MND, MNI
Mandelbrot for Windows
MNG
Map (DeLorme Map'n'Go)
MNG
Multi-image Network Graphics
MNT
Menu file (Microsoft FoxPro)
MNU
Menu file (Visual dBase)
MNU
Advanced macro (HP NewWave)
MNU
Interact menu (Intertal Systems)
MNU
Menu (AutoCAD Menu Compiler)
MNU
Menu (Norton Commander)
MNX
Menu (Microsoft FoxPro)
MNX
Compiled menu (AutoCAD)
MNY
Account book (Microsoft Money)
MOB
Device definition (PEN for Windows)
MOD
FastTracker, StarTrekker, Noise Tracker (etc.) music module file
MOD
Spreadsheet (Microsoft Multiplan)
MOD
Modula-2 source code file (Clarion Modula-2)
MOD
Kernel module (Microsoft Windows 9.x)
MOD
Amiga/PC tracker module
MON
Monitor description (ReadMail)
MOV
Movie (QuickTime for Microsoft Windows)
MOV
Movie (AutoCAD/AutoFlix)
MOZ
Zipped (Compressed) mod file
MP2
MPEG Audio Layer 2
MP3
MPEG Audio Layer 3 (AC3)
MPA
MPEG-related file (MIME type 'mpeg')
MPC
Calendar file (Microsoft Project)
MPD
Database file (Microsoft Project)
MPE
MPEG animation
MPEG
MPEG animation
MPG
MPEG animation
MPM
Mathplan Macro library (Microsoft WordPerfect for Windows)
MPP
Project file (Microsoft Project)
MPP
Drawing file (CAD)
MPR
Menus (compiled) (Microsoft FoxPro)
MPT
Bitmap graphics (Multipage TIFF)
MPV
View file (Microsoft Project)
MPX
Compiled menu program (Microsoft FoxPro)
MPX
Exchange file (Microsoft Project) used for exporting data
MP2
MPEG Audio Layer 2 file (MIME video file)
MP3
MPEG Audio Layer 3 (AC3) file
MRB
Multiple resolution bitmap graphics (Microsoft C/C++)
MRI
MRI Scan
MRS
Macro resource file (Microsoft WordPerfect for Windows)
MSA
Archive (Magic Shadow)
MSC
Makefile (Microsoft C)
MSC
Common console document (Microsoft Windows 2000)
MSD
Diagnostics report file (Microsoft MSD) (Diagnostics)
MSDL
Scene Description Language (Manchester)
MSG
Mail message (Microsoft)
MSI
Installer package (Microsoft Windows)
MSN
Network document (Microsoft)
MSN
Mission File (Descent)
MSP
Paint bitmap (Microsoft)
MSP
Windows Installer patch file
MSS
Manuscript text file (Perfect Writer)
MSS
Manuscript text file (Scribble)
MSS
Manuscript text file (MINCE)
MSS
Manuscript text file (Jove)
MST
Windows Installer transform
MST
Minispecification file (Prosa)
MST
Setup script (Microsoft SDK)
MSW
Text file (Microsoft Word)
MSX
Compressed CP/M archive (MSX)
MTH
Math file (Derive)
MTM
Music module (MOD) (Multitracker)
MTW
Datafile (Minitab)
MTX
Twain device driver (32 bit)(UMax)
MU
Menu (Quattro Pro)
MUL
Online game called Ultima online
MUS
Music (Generic)
MUS
Interactive music audio data file (Electronic Arts)
MUS
Music (MusicTime)
MUS10
Audio (Mus10)
MV
Server-side script file (Miva)
MVA
Video accelerator file (Matrox)
MVB
Multimedia Viewer file (Microsoft)
MVC
Image file (Sony Digital Mavica)
MVE
Interplay video file (Descent2, Fallout2)
MVF
Stop frame file (AutoCAD-AutoFlix)
MVI
Movie command file (AutoCAD-AutoFlix)
MVW
Log file (Saber LAN)
MWF
Animation (ProMotion)
MWP
Smartmaster file (Lotus WordPro 97)
MXD
Map file (ArcInfo)
MXT
Datafile (Microsoft C)
MYP
Presentation file (Make Your Point)
NAN
Nanoscope files (Raw Grayscale)
NAP
Metafile (NAP)
NAP
Video file (EnerGraphics)
NB
Text file (Nota Bene)
NC
Instructions for numerical control machine (CAMS)
NCB
Developer Studio file (Microsoft)
NCC
CNC (Computer Numeric Control) file (CamView 3D)
NCD
Change directory (Norton)
NCF
Command File (Netware)
NCF
Internal clipboard (Lotus Notes)
NDB
Network database (Intellicom)
NDO
3D low-polygon modeler (Nendo)
NDX
Index file (dBase II-III-IV)
NDX
Database file (1ACT! for Microsoft Windows)
NDX
Index file (Cindex)
NEO
Raster graphics (Atari Neochrome)
NES
Emulator ROMS for game console (Nintendo)
NET
Network configuration file
NET
Netlist output file (Orcad Schematic Capture)
netCDF
Network Common Data Form
NEW
New info
NEZ
Emulator file used for game consoles (NES)
NFF
Neutral File Format
NFO
Info file database text
NFO
Infobase file (Folio)
NFT
Template file (Netobject Fusion)
NG
Online documentation database (Norton Guide)
NIL
Icon Library file (EasyIcons-compatible) (Norton)
NIST
Audio (NIST Sphere)
NLB
Data (Oracle 7)
NLM
Loadable Module (Netware)
NLS
National Language Support file used for localization (for example, by Uniscape)
NLU
E-Mail Trigger file (Norton LiveUpdate)
NLX
Form (FormWorx 3.0)
NOD
File (Netobject Fusion)
NP
Project schedule (Nokia Planner)
NP
Project schedule (Visual Planner 3.x)
NPI
Source for interpreter (dBase Application Generator)
NRF
Data file (NICOLET)
NRG
Image file (Nero)
NSF
Database (Lotus Notes)
NSO
Document file (NetObject Fusion)
NST
Music module (MOD) (Noise Tracker)
NS2
Database (Lotus Notes version 2)
NS3
Database (Lotus Notes version 3)
NS4
Database (Lotus Notes version 4)
NT
Startup files (Microsoft Windows NT)
NTF
Database template (Lotus Notes)
NTR
Executable ASCII text file
NTS
Tutorial (Norton)
NTS
Executable ASCII text file
NTX
Index file (CA-Clipper)
NUF
Message for new users (1st call) (Procomm Plus)
NWC
Song file (Noteworthy Composer)
NWS
News message (MIME RFC822) (Microsoft Outlook Express)
NXT
Sound file (NeXT)
Segnalibri