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File Extensions beginning with the letter 'M'


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Extension click to sort by Extension Description currently sorted on Description Format MIME Type
MASS 11
MEM
Microsoft Office Binder
mdx
MKS
mde
mst
MP~
MedFileS
msb
mb
mdt
mxt
MSDL Manchester Scene Description Language
MGF Materials and Geometry Format
MNG Multiple Network Graphics
MTL Wavefront
MAN (1) (MIME: application/x-troff-man)
MDL (1) 3D Design Plus
MD (1) Archive; MDCD
MNX (1) AutoCAD Compiled Menu
MNU (1) AutoCAD Menu
MBK (1) Backup; dBase IV Database Index
MAG (1) Bitmap Picture; MPS Magro Paint
MPT (1) Bitmap Picture; see TIF
MST (1) Corel Presentation Master (Presentation Document)
MDX (1) dBase index
MPD (1) Device Driver; Windows Mini-port driver
MSG (1) Document; Microsoft Exchange mail Document
MBX (1) Document; Outlook Express Mailbox
MMM (1) Font; Adobe Type Manager multiple-master metrics; see PFB, PSS
MGF (1) Font; Micrografx
MLB (1) FoxPro for Macintosh Library
MF (1) FrameMaker MakerFile
MAP (1) Geography Map
MPR (1) Lotus Approach Smart Master Database application
M (1) Mathematica
MBS (1) Micrografx Picture Publisher Brush Shape
MAT (1) Microsoft Access Database Table Shortcut
MDB (1) Microsoft Database Application
MCC (1) Microsoft Network Shortcut
MOD (1) Modula-2 programming language source code
MOV (1) Movie Clip; MOV/MOVIE Apple QuickTime (MIME: video/quicktime)
MPV (1) Movie Clip; MPEG
MMP (1) Movie Clip; Multimedia Player
MPM (1) MPEG Movie
MKI (1) Picture; MediaKnife (another Internet Animation Picture)
MNG (1) Picture; Multiple Network Graphics
MID (1) Sound; MIDI Sequence; see MOD (MIME: audio/mid)
MBS (2) Atari ST STOS Memory Banks; see MBK
MBK (2) Atari ST, One STOS Memory Bank
MOV (2) AutoCAD AutoFlix
MBX (2) Database Index; dBase index
MCC (2) Dialer 10 Calling Card
MID (2) Eudora Script
MF (2) Font; MetaFont
MSG (2) FoxDoc message (FoxPro)
MNU (2) FoxPro Menu
MNX (2) FoxPro Menu definition
MNG (2) Geography Map; DeLorme Map-N-Go
MLB (2) Lotus Symphony macro
MAG (2) Magenta color separation; BLA (Black) CYA (Cyan), YEL (Yellow) Adobe Color Separation
MAP (2) MAPI Mail
MGF (2) Materials and Geometry 3D rendering
M (2) MatLab
MAT (2) MatLab
MDX (2) Microsoft Database Index
MDB (2) Microsoft file Viewer
MMP (2) Microsoft Music Producer
MPT (2) Microsoft Project Data
MPD (2) Microsoft Project for Windows
MPV (2) Microsoft Project view
MST (2) Microsoft Test script
MOD (2) Module
MMM (2) Movie Clip; RIFF Multimedia movie (Animation)
MD (2) Picture; MacDraw
MKI (2) Picture; MagView; Japanese MAKIchan
MDL (2) Spreadsheet; CA-Compete
MAN (2) Text (manual)
MPM (2) WordPerfect Math Plan macro
MNG (3) Bitmap Picture; Animation Shop
MOD (3) Digital music sound clip; see MID, IT, XM
MDX (3) Inprise (Borland) Database Index
MNU (3) Lotus WordPro Menu
MCC (3) MathCad configuration; see INI
MAP (3) Programming Linker segment map
MST (3) Prosa
MDL (3) Sound DigiTrakker
MSG (3) Text Document
MIF (3) Watcom Make script
MOD (4) Eudora Script
MAP (4) Game Level for Duke3D, Doom
MAP (5) Inprise (Borland) Delphi Games Creator Map Library; CRL, IML, SDL
MOD (5) Spreadsheet; Microsoft Multiplan
MOD (6) Windows link Library DLL (rare)
MAZ A file format use by Division's dVS/dVISE
MLI A file in 3D Studio's Material-Library format
MGF A file in a Materials and Geometry Format
MAG A graphics file format found in some Japanese files
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 W
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 W
MDB Access 2.0 Database
MIF Adobe FrameMaker Interchange Format
MOD Amiga/PC tracker module
MMM Animation
MB1 Apogee Monster Bash
MB1 Apogee Monster Bash data file
MCW Apple Macintosh MacWrite
MHK Archive; Mohawk Archive for the game Riven
MVA Archive; Used by MS, some setup programs
MSA Atari ST Disk Image; Magic Shadow Archive
MVF AutoCAD AutoFlix
MVI AutoCAD AutoFlix
MSK Autodesk Animator Mask Format
MBOX Berkeley Unix mailbox format
MMG Beyond 20/20 table or aggregate data file
MLP Bitmap Picture; Mac Link Plus Capture
MPP CAD drawing file format
MFF Cakewalk MAPI file
msg CompuServe email message
MDM Configuration; Telix modem description
M3D Corel Motion 3D animation
MXE Corel Quatro Pro startup macro (executed when a Spreadsheet is opened)
MBF Corel Visual DTD Document Type Definition for SGML
MBV Corel.visualDTD.7
MSX CP/M Archive
MTH Data; Derive
MNY Data; Microsoft Money account
MII Data; MicroStat-II
MAM Database Program; Microsoft Access Database Macro
MAQ Database Query; Microsoft Access Database Query
MB Database Text; Paradox Memo
MDR Database; Medical Drug Reference; see SRL
MII Database; MicroStat-II
MTW Database; MiniTab
MCR DataCAD Keyboard macro file
MSN Descent Mission File
MN2 Descent2 Mission File
MCC Dialer10 calling card
MDL Digital Tracker music module (MOD) file
MW Document; Apple Macintosh MacWrite
MMO Document; Ashton Tate RapidFile memo
MSS Document; manuscript; files created by programs based on Windows SDK Scribble sample application
M11 Document; MASS11
MSW Document; Microsoft Word; see DOC
MM Document; MultiMate Advantage
MCI Driver; Media Control Interface
MAP Duke Nukem 3D WAD game file
msg email messages
MLI Encarta Media List
MSG Exchange Mail Message
MBX Extension Microsoft Outlook adds to saved email, Eudora mailboxes
MOD FastTracker, StarTrekker, Noise Tracker (etc.) music module file
MDB File viewer extension
MCF Font; MathCad
MER Format for interchanging spreadsheet/database data; recognized by Filemaker, Excel, and others
MPX FoxPro compiled menu; Microsoft Project for Windows
MNT FoxPro Menu Memo
MML FrameMaker
MST Graphics
MVB Graphics file
MA3 Harvard Graphics
MAZ Hover maze data
MOC Internet Program; MOCHA Java script; see JS
MNU Intertel Systems Interact menu file
MAX KINETIX's 3D Studio MAX file format for a 3D scene
MTF Klik 'n Play Game; GAM
MC Localized Message Table Resource (Windows)
MAS Lotus Freelance Graphics Smart Master look; see SMC
MAS Lotus Freelance Graphics Smartmaster file
MWP Lotus Wordpro 97 Smartmaster file
MWP Lotus WordPro Document smart master
MRF Macintosh Font; Font (Vector Drawing?)
MAC MacPaint bitmap image. Details
mac macro
MAC Macro for Borland TASM
MAGIC Magic Mail Monitor configuration file
MSA Magic Shadow Archive
MIFF Magick Image File Format. Raster image. Native format for ImageMagick. Details
MAK Make; Program compiler make file; see DSW
mak makefile
MSDL Manchesters Scene Description Language
MND, MNI Mandelbrot for Windows
MAP Map file
MXP MasterCook v4 receipe file
MX2 MasterCook v5+ receipe file
MCS Math CAD
MCD MathCad
MEX MatLab
MAT Matlab variables binary file
MKV Matroska audio/video container. More Info.
MAUD MAUD sample format
MCI MCI command set
MI ME10/30
MMF Meal Master Format, a recipe catologing format
MM MealMaster receipe file.
MXF Media Exchange Format: used for exchanging multimedia data (including metadata) in professional broadcasting
MPF Media Package File. Clipart metadata used by more recent versions of Microsoft Office
mnu menu
MDF Menu Definition File
MU Menu; Inprise (Borland) /Corel Quatro Pro
MAR Meta-ARchive. More info
MFJ MetaFont batch file
MCP metrowerks CodeWarrior project file
MGX Micrografx Clipart Picture
MDB Microsoft Access
MDA Microsoft Access add-in
MDT Microsoft Access Add-in Data
MDN Microsoft Access Blank Database Template
MDN Microsoft Access blank database template
MAC Microsoft Access Command
mdb Microsoft Access database
MDB Microsoft Access database
MDA Microsoft Access Database Add-in
MAD Microsoft Access Database Module
MAF Microsoft Access Form
MAM Microsoft Access Macro
MDE Microsoft Access MDE file
MAD Microsoft Access module
MAQ Microsoft Access Query
MAR Microsoft Access Report
mda Microsoft Access security database
mdw Microsoft Access security database
MAT Microsoft Access Table
MDZ Microsoft Access wizard template
MDZ Microsoft Access Wizard Template
MDW Microsoft Access Workgroup
MDA Microsoft Access workgroup for version 2
MDW Microsoft Access Workgroup Information
manifest Microsoft Clickonce applicaton manifest [ms-clickonce] application/x-ms-manifest
MSG Microsoft Exchange mail document
MNX Microsoft FoxPro menus
MNT Microsoft FoxPro menus
MPR Microsoft FoxPro menus (compiled)
MIC Microsoft Image Composer
MIC Microsoft Image Composer file
MIX Microsoft Image Exchange. Raster image (usually a photo) vector overlays. [mix]
MMF Microsoft Mail File
MBG Microsoft Mail mailbag
MAI Microsoft Mail message
MSG Microsoft Mail message
MMF Microsoft Mail Message (like an INI or the Registry)
MMF Microsoft Mail message file
MMH Microsoft Media Manager Helper DLL (uncommon type)
mvb Microsoft Media Viewer Book
MVB Microsoft Media Viewer Document; display with MVIEWER.EXE or MVIEWER2.EXE.
MMM Microsoft Multimedia Movie
MVB Microsoft Multimedia Viewer file
MOD Microsoft Multiplan spreadsheet
MSN Microsoft Network document
MSN Microsoft Network home base
MSN Microsoft Network home base (Document?); MSN Central
MPO Microsoft Org Chart, organizational chart; see OPX
MSP Microsoft Paint. Raster image. Details
MXT Microsoft Programmer's WorkBench Add-In
MPC Microsoft Project calendar
MPP Microsoft Project file
MPW Microsoft Project for Windows
MCW Microsoft Word for Macintosh document
MID MIDI file
MUZ MIDI (used by Windows' Hover game)
mid MIDI file (music)
midi MIDI file (music)
MIF MIDI instrument file
MID MIDI music
MID MIDI sequence
mid MIDI Sound File
MME Mime encoded; see MIM
MIM Mime encoded; see MME
MHTML MIME HTML. A HTML page with associated file grouped together. See RFC 2257. [MIME-HTML]
MMP Mindmapor MindManager file
MPD Mini-port driver
MRW Minolta RAW. Raster image from a Minolta digital camera. [RAW]
MI Miscellaneous
M3G Mobile 3D Graphics for J2ME (JSR-184)
M3 Modula 3 programming language source code
mod Modulated Sound File
mp3 Motion Picture Experts Group
MPEG Motion Picture Experts Group. Video. Details
MOO Movie Clip; Apple QuickTime; same as MOV
MAB Mozilla Address Book. Email addresses and lists for Mozilla and Thunderbird.
MAFF Mozilla Archive File Format. A web page with all related files saved into a single file. Details. [MAFF]
MZT Mozilla Template. HTML template for editing files with NVU
M2V MPEG 2 Movie; see MPG
MP2 MPEG Audio Layer 2
MP3 MPEG Audio Layer 3 (AC3)
MPA MPEG Movie (MIME: video/mpeg)
M1V MPEG Movie; video/mpeg; see MOV (MIME: video/mpeg)
M3U MPEG URL (MIME audio file)
MPA MPEG-related file (MIME type 'mpeg')
M1V MPEG-related file (MIME type 'mpeg')
MRI MRI Scan
mdb MS Access Database File
MSN MSN (Microsoft Network)
MNF MSN Search
MNG Multi-image Network Graphics
MMW Multimedia World magazine
MOD Multiplan v 3, 4.0, 4.1 File
MRB Multiple resolution Bitmap Picture; contains several BMP at different resolutions created by Microsoft MRBC.EXE for help files
MTM MultiTracker music module (MOD) file
MNB MuPAD Pro Notebook. Details, More
MU MuPAD Source File. Details, More
MUS10 Mus10 audio
MUS Music
MED Music Editor, OctaMED music module (MOD) file
moz Netscape temp save
MIX Object file; Power C; OBJ
MUL Online game called Ultima online
MAX OrCAD layout file
MET OS/2 Presentation Manager Metafile. Vector and raster image. Details
MOX Packed file (Netscape)
MAX Paperport file
MUR Picture; Atari ST
M3D Picture; Corel Motion 3D
MRK Picture; Informative Graphics Markup
MEN Picture; TIF
MYP Presentation; Make-Your-Point
MFG Pro/ENGINEER manufacturing file
map program symbol map
MDP Project Workspace (to do with Microsoft Visual C++ MAK files and Microsoft Visual J++); see DSW, MAK
ML3 Project; Milestones 3
MDL Quake model file
mov Quick-Time Movie
MOV QuickTime for Windows movie
mov QuickTime movie
MVW Saber LAN log
MHTM same as MHTML [MIME-HTML]
MHT Same as MHTML [MIME-HTML]
MIDI Same as MID
MOCHA Same as MOC
MOOV Same as MOV
MOVIE Same as MOV (MIME: video/x-sgi-movie)
MNF Saved MSN Search
MIME See MIM.
MPG Short version of MPEG. Video. Details
MSS Shortcut to MSN
MED Sound; Amiga; Med/OctaMed
MIX Sound; Dance/RaveEjay
MTM Sound; MultiTracker Module
MTR Sound; MultiTracker Module Master
MUS Sound; Music Time, Doom, Heretic
MAR Source Code; VAX Assembly Language; see ASM
MP Spreadsheet; Microsoft Multiplan
ME Text (READ.ME)
ME Text file
MBOX UNIX Mailbox
MAN Unix Manual page output
M4 UNIX preprocessor
MTV Video Clip; see MPG
MAX Visioneer PaperPort scanned Document, compressed Picture
MAK Visual Basic or MS Visual C++ Project
MNU Visual dBASE menu file
MSI Windows Installer package
MSP Windows Installer patch file
MST Windows Installer transform
MAZ Windows' Hover maze


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