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Data Formats and File Extensions: M

Find data file formats and file extensions that start with the letter M, or view thousands of formats in the complete list.

With literally thousands of data file formats employed by Windows and Window-based apps, keeping track of all the file extensions employed by your software applications and programs can be quite a challenge. Fortunately, Webopedia's Complete List of Data File Formats and File Extensions makes it quick and easy to sift through thousands of file extensions and data file formats to find exactly what you need. You can peruse the full list or search for data formats and file extensions based on the letter they start with from the table below.

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  Data File Formats that Begin with the Letter 'M'

.mFunction (program) (Matlab)
Macro module (Brief)
Standard package (Mathematica)
.m11Text file (MASS11)
.m1vMPEG-1 Video file
.m2pMPEG-2 Program Stream Format file
.m2tsBDAV MPEG-2 file
.m2vMPEG-2 Video Only file
.m3Modula 3 source code file
.m3d3D animation macro
.m3uMusic Playlist (Winamp)
.m4M4 preprocessor file (unix)
.m4aMPEG-4 Audio Layer
.m4bMPEG-4 Audio Book file
.m4pMPEG-4 Encoded Audio file
.m4riPhone Ringtone file
.m4vApple Video file
.m_uBackup of boot sector, FAT and boot dir (MazeGold)
.ma3Macro (Harvard Graphics 3.0)
.macBitmap graphics (Macintosh MacPaint)
.madMS Access Module Shortcut
.maffMozilla Archive Format file
.magWoody Lynn's MAG graphics format (MPS Magro Paint System)
.maiMail (VAX)
Project file (Visual Basic)
.manCommand manual
.mapColor palette
Format data (Micrografx Picture Publisher)
Linker map file
Map (Atlas MapMaker)
Network map (AccView)
.marMozilla Archive
Microsoft Access Report file
Assembly program (VAX Macro)
.masSmartmaster set (Freelance Graphics)
.matData file (Matlab)
Microsoft Access Shortcut file
.maxMax source code file
Microsoft Data Analyser View
.mbMemo field values for database (Paradox)
.mbfMS Money Backup file
.mbkMultiple index file backup (dBASE IV)
Medisoft for Windows Backup
.mbxMailbox (Eudora/Zerberus)
.mccConfiguration file (Mathcad)
.mcdDocument (Mathcad)
.mcfMathcad font
Meta Content Format file
Master Command file
TMPGEnc template
.mciMci command script (Media Control Interface)
.mcpApplication script (Capsule)
Printer driver (Mathcad)
.mcrDataCAD Keyboard macro file
.mcwText file (MacWrite II)
.mcxGraphic file
.mdCompressed file archive created by MDCD (mdcd10.arc)
.md5MD5 Checksum file
Message Digest 5 (Easy MD5 Creator)
.mdaData (MS Access)
.mdbDatabase (MS Access)
.mdeMicrosoft Access MDE database
.mdfAccelio Capture Classic (JetForm) Filler
I-deas Master Drafting Machine Data file
Menu Definition file
MS-SQL Master Database file
Alcohol 120% CD Image File
.mdiMicrosoft Office 2003 imaging format
Borland multiple document interface
.mdkKeyboard Map file
.mdlModel (3D Design Plus)
Spreadsheet (CA-Compete!)
.mdmModem definition (TELIX)
.mdmpMicrosoft Windows XP Trouble Report
.mdrFaxTalk Modem Doctor Modem Report file
.mdtData table (MS ILink incremental linker)
.mdxMultiple index file (dBASE IV)
.mdzMS Access Wizard Template
.meUsually ASCII text file READ.ME
.mebMacro Editor bottom overflow file (WordPerfect Library)
.medMacro Editor delete save (WordPerfect Library)
Music (OctaMED)
.memMacro Editor macro (WordPerfect Library)
Memory variable save file (Clipper - dBASE IV - FoxPro)
.meqMacro Editor print queue file (WordPerfect Library)
.merMacro Editor resident area (WordPerfect Library) (vakioalue)
.mesMacro Editor work space file (WordPerfect Library)
.metDocument (Omnipage Pro)
eDonkey2000 file
Macro Editor top overflow file (WordPerfect Library)
Presentation Manager Meta file
.meuMenu group (DOS Shell)
.mexMex file (executable command) (Matlab)
Macro Editor expound file (WordPerfect Library)
Mioplanet mex reader interactive file
.mfMetafont text file
.mfxImageMAKER Fax Viewer folder file
.mgfFont (Micrografx)
.mgiModular Gateway Interface
.mgpMagicPoint Presentation file
.mhpMS Home Publishing Project
.mhtMS MHTML Document
.miaMusicIndiaOnline player music file
.mibSnmp MIB file
.micMicrosoft Image Composer file
.midStandard MIDI file (music synthetizers)
.mifMaker Interchange Format (FrameMaker)
.miiDatafile (MicroStat-II)
.mimMIME file
.mioMultimedia Interactive Object
.mipPaint Shop Pro Multiple Image Print file
.misDelta Force Land Warrior Mission
MagicInstall Installation Script
Tribes 2 Game file
.mixObject file (Power C)
.mkdPervasive Btrieve files
.mkeMakefile (MS Windows SDK)
.mkiJapanese graphics MAKIchan format (MagView 0.5)
.mksData (TACT)
.ml3Project (Milestones 3.x)
.mlbMacro library file (Symphony)
.mlmNovel Groupwise e-mail file
.mmText file (MultiMate Advantage II)
.mmcMedia Catalog
MSoffice Media Content
.mmdPeristudio/PeriProducer file
.mmfMail message file (MS Mail)
.mmlMail Meta Language
.mmmMovie (RIFF RMMP format) (MacroMind Director 3.x)
.mmoMemo writer file (RapidFile)
.mmpOutput video format from Bravado board
.mmxCommand & Conquer Red Alert 2 Map file
Oracle Forms Compiled Menu
.mmzMusicMatch Theme file
.mndMenu source (AutoCAD Menu Compiler)
.mngMap (DeLorme Map'n'Go)
.mntMenu memo (FoxPro)
.mnuAdvanced macro (HP NewWave)
Menu (AutoCAD Menu Compiler - Norton Commander - Signature)
.mnxCompiled menu (AutoCAD)
Menu (FoxPro)
.mnyAccount book (MS Money)
.mobDevice definition (PEN Windows)
.modModula-2 source code file (Clarion Modula-2)
Windows kernel module
Music (FastTracker - many)
.molMDL Molfile
.monMonitor description (ReadMail)
.movQuickTime Video Clip
Apple QuickTime Audio
AutoCAD AutoFlix Movie
.mp2Mpeg audio file (xing)
.mp3mp3PRO Audio file
MPEG Audio Stream, Layer III
SHARP MZ-series Emulator file
Wrapster Wrapped file
.mp4MPEG-4 Video File
.mpaMPEG Audio Stream, Layer I, II or III
.mpcCalender file (MS Project)
.mpdMS Project database file
.mpeMPEG Movie Clip
.mpegMPEG Movie Clip
.mpfMS Design Gallery
MosASCII Project Workspace file
.mpgMPEG-1 animation
.mplPlaylist Data file
.mplsBlu-ray Information file
.mpmMathplan macro (WordPerfect Library)
.mppProject file (MS Project)
CAD Drawing File
.mpqBlizzard Game Data file
.mprGenerated program (FoxPro)
.mpsMultimedia File
Casio PDL Pocket Streets Map
.mptBitmap graphics (Multipage TIFF)
Template File (MS Project)
.mpvView file (MS Project)
.mpwMosASCII Project Workspace file
.mpxCompiled menu program (FoxPro)
.mrbMultiple Resolution Bitmap graphics (MS C/C++)
.mrcMIRC Script file
Bibliographic Data Format
.mrkInformative Graphics markup file
.mrsMacro Resource file (WordPerfect for Win)
.mscMS C makefile
.msdMS Diagnostic Utility Report
.msfMultiple Sequence file
.msiWindows Installer file
.msmMultiSIM Circuit Diagram
.msnMSN Content Plus file
.msoMath Script Object file
MS FrontPage file
MS Word OLE Web Page Storage Stream
.mspBitmap graphics (Microsoft Paint)
.mspxXML based Web Page
.mssManuscript text file (Perfect Writer - Scribble - MINCE - Jove)
.mstChemFinder Chemical Structure Index
DATAIR Pension System Master file
Minispecification file (Prosa)
Setup script (MS Windows SDK)
Visual Test Source file
.msuWindows Update file
.msvSony Memory Stick Format
.mswText file (MS Word)
.mswmmWindows Movie Maker Project
.msxCompressed CP/M file archive created by MSX
.mtdDigital Sheet Music
.mthMath file (Derive)
.mtmMultitracker Module music
.mtsAVCHD Video file
Viewpoint iPix file
.mtvMTV Music Generator
.mtwDatafile (Minitab)
.mtxTemporary File often used by a browser or TWAIN device
Viewpoint iPix file
Max Magic Microtuner tuning text file
.muMenu (Quattro Pro)
.mu3Myriad Music file (packed sounds & digital tracks)
.mufProtoMuck Multi User Forth Program
.mulUltima Online Game
.musMusicTime Sound file
Myriad Music file
MS Multimedia viewer file
MvPCbase www.mvsoft-comp.com
.mvcMusic Collector Collection Manager file
.mvdMicroDVD (DVD movie file)
.mvfStop frame file (AutoCAD AutoFlix)
.mviMovie command file (AutoCAD AutoFlix)
.mvwLog file (Saber LAN)
.mwfAnimation (ProMotion)
.mwpLotus Wordpro 97 Smartmaster file
MegaWorks Pack file
.mwsMaple Worksheet File
.mwvMovieWorks file
.mxdGIS Project file
.mxeMacro Express
Mindex Effect Album
.mxfMaterial eXchange Format for the interchange of audio-visual
Material with associated data and metadata.
.mxlMoxcel Spreadsheet File
.mxmMS Project/Outlook Team Assign Task
.mxpMacromedia Extension Manager
ArcReader Published Map
.mxtData (MS C)
.mypPresentation (MM Make Your Point)
.myrMyriad Music file
.mysMyst Saved Game
.mytMyriad Tutorial file
.mzpMaxscript Compressed File

Recommended Reading: An Introduction to Data File Formats and Their File Extensions

Number  Symbol  A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z  Full List


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