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)