M File Extensions

File Extension File Type Popularity
.M MATLAB Source Code File 4.2
.M Objective-C Implementation File 4.2
.M Mathematica Input File 3.8
.M Mercury Source Code File 3.5
.M PC-98 Game Music File 3.3
.M1PG iFinish Video Clip 3.8
.M2 World or Warcraft Model Object 4.8
.M2 PC-98 Game Music File 3.5
.M21 AXMEDIS MPEG-21 File 4.5
.M21 MPEG-21 File 4
.M2P MPEG-2 Program Stream File 4.5
.M2P Maxthon 2 Browser Plugin File 3.8
.M2S Maxthon 2 Browser Skin File 4
.M2T HDV Video File 4.2
.M2TS Blu-ray BDAV Video File 4.5
.M2V MPEG-2 Video 3.8
.M3 Blizzard MDX3 Model File 3.5
.M3U Media Playlist File 4.5
.M3U8 UTF-8 M3U Playlist File 4.3
.M4 Macro Processor Library 4.7
.M4A MPEG-4 Audio File 4.2
.M4B MPEG-4 Audio Book File 4.2
.M4P iTunes Music Store Audio File 3.6
.M4R iPhone Ringtone File 4.5
.M4V iTunes Video File 4.4
.M77T MGD77T Data File 3.5
.MA Maya Project File 4.7
.MA1 Monarch Audio File 4
.MAB Mozilla Address Book 3.9
.MAE My Avatar Editor Character File 4.2
.MAF Mutation Annotation Format File 4
.MAF Microsoft Access Form 3.8
.MAFF Mozilla Archive Format File 4.4
.MAGIK Magik Source Code File 3.5
.MAHJONGTITANSSAVE-MS Mahjong Titans Saved Game 4.3
.MAI Microsoft Mail File 4.2
.MAILHOST MSN Mailhost Settings File 4
.MAILSTATIONERY Apple Mail Stationery File 4
.MAILTOLOC Mail Internet Location File 4
.MAK Makefile 3.8
.MAKE Xcode Makefile Script 3.2
.MAKE Drush Makefile 3
.MAKERBOT MakerBot Print File 4.5
.MANI Mine-imator Project File 4.5
.MANIFEST Windows Application Manifest File 4.5
.MANIFEST Steam Manifest File 3.8
.MAP Quake Engine Map File 4.3
.MAP Halo Map File 3.8
.MAP Furcadia Dream File 3.4
.MAP Image Map 3.3
.MAP Fallout Map File 3.2
.MAP Leges Motus Map File 3.2
.MAP TECkit Mapping File 3.2
.MAP Weather Defender Map 3.1
.MAP Rigs of Rods Key Assignments File 3
.MAP NAVIGON Map File 3
.MAP Mapjects Server Webparts File 3
.MAPIMAIL Send To Mail Recipient 4.5
.MAPLET Maplet World File 4
.MAQ Microsoft Access Query 4.2
.MAR Mozilla Archive 4.5
.MAR Microsoft Access Report 4.2
.MAR Mariner Calc Spreadsheet 3.5
.MARKDOWN Markdown Documentation File 4.7
.MARSHAL Marshal Data Migration Model File 4
.MART MartView eBook File 4
.MAS rFactor Track File 4.8
.MAS MEGA Alignment Sequence File 3.5
.MAS Access Stored Procedures 3.5
.MASK SpeedGrade Color Mask File 4
.MASSEFFECTPROFILE Mass Effect Player Profile 4.2
.MASSEFFECTSAVE Mass Effect Saved Game 4.5
.MAT Microsoft Access Table Shortcut File 4.5
.MAT MATLAB MAT-File 4.2
.MAT 3ds Max Materials File 4.2
.MAT Vue Material File 4
.MAT V-Ray Materials File 3.5
.MAV Access View File 4.2
.MAX 3ds Max Scene File 4.2
.MAX Action Replay Max Save File 3.9
.MAX OmniPage Scanned Document 3.8
.MAX PaperPort Scanned Document 3.8
.MAXC 3ds Max Container File 4.2
.MB Maya Binary Project File 4.2
.MB Kodak EasyShare Data File 3.2
.MBD Multimedia Builder Project File 4.5
.MBF Microsoft Money Backup File 4.7
.MBG Microsoft Mailbag 4
.MBG Mailbag Assistant Mailbox File 4
.MBI Multi-Bootable Information File 4.5
.MBM Kerbal Space Program Texture File 4
.MBM Multi Bitmap File 3.6
.MBOX E-mail Mailbox File 4.4
.MBP Mobipocket Notes File 4.4
.MBP MediaShow Burning Project File 4
.MBR Master Boot Record File 4.5
.MBR Zune Smooth Streaming File 4.5
.MBS Opera Mailbox File 4
.MBX Outlook Express Mailbox 4.5
.MC1 MedCalc Data File 4
.MC2 MasterCook 5 Cookbook File 4
.MC5 Poser 5 Material File 4
.MC6 Poser Material Collection File 4
.MC9 Mastercam 9 Geometry File 4.5
.MCA Minecraft "Anvil" Map File 4.7
.MCD MiniCAD Design File 4.1
.MCD Mathcad Document 4
.MCDX Mathcad Prime Document 4.2
.MCL Windows Media Center Link File 4.7
.MCMAC MasterCook Mac Document 4
.MCO Live Messenger Winks File 4
.MCP CodeWarrior Project 4.4
.MCP Megacubo Package 3.5
.MCR Minecraft Region File 4.8
.MCR Tecplot Macro 4.5
.MCR 3ds Max Macroscript File 4.4
.MCR ePSXe Memory Card File 4.3
.MCSERVER Minecraft Server File 4.3
.MCSP My Craft Studio Project File 4
.MCSX My Craft Studio Professional File 3.5
.MCT Windows Live Messenger Data File 4.2
.MCX MICRO CADAM-X/6000 Model Data File 4.2
.MCZ Compressed Poser Material File 4
.MD Markdown Documentation File 4.5
.MD Moneydance Financial Data File 4.2
.MD SEGA Mega Drive ROM 4
.MD MDCD Compressed Archive 4
.MD Machine Description File 3.5
.MD Sharkport Saved Game File 3.2
.MD0 Alcohol Disk Image Segment 1 4.7
.MD0 Adobe Photoshop Metadata Cache File 3
.MD1 GEAR CD/DVD Disc Image 4.2
.MD1 Alcohol Disk Image Segment 2 4
.MD2 Alcohol Disk Image Segment 2 4.7
.MD2 Quake 2 Player Model 4
.MD3 Quake 3 3D Model 4
.MD5 MD5 Checksum File 4.3
.MD5.TXT Message Digest 5 Hash File 4.2
.MD5ANIM id Tech 4 Model Animation File 4.5
.MD5CAMERA id Tech 4 Model Camera File 4
.MD5MESH id Tech 4 3D Mesh File 4.5
.MD8 Mediator Project File 3.5
.MD8 GarageCUBE Modul8 Project 3.2
.MDA Access Add-in 4.5
.MDB Microsoft Access Database 4.2
.MDB Avid Media Database 3.8
.MDBACKUP iPhone Data Backup File 4
.MDC Multi Dimension Cube File 4.4
.MDC MidiCo Karaoke Audio File 4
.MDC Merkaartor Document 4
.MDD Point Oven Deformation Data File 4.5
.MDD MDict Resource File 3
.MDDATA iPhone Backup File 4.5
.MDE Compiled Access Add-in File 4.4
.MDE ArchiCAD Educational Version Module File 4
.MDF SQL Server Database File 4.5
.MDF Media Disc Image File 4.5
.MDF Measurement Data Format File 4.4
.MDF Translation Memory Data Find File 4.2
.MDI Microsoft Document Imaging File 4.3
.MDINFO iPhone Backup Information File 4.5
.MDJ StarUML Model File 4.1
.MDL MathWorks Simulink Model 4.6
.MDL Warcraft 3 3D Model Text File 4.5
.MDL Rational Rose Model File 4.4
.MDL Half-Life Model File 4.3
.MDL Flight Simulator Airplane Model 4.2
.MDL DigiTrakker Module 4
.MDL Lectra Modaris Clothing Design File 3.5
.MDL Luigi's Mansion 3D Model File 3.4
.MDM HLM Multivariate Data Matrix File 4
.MDM Mario Dash Map File 3
.MDMP Windows Minidump 4.6
.MDOWN Markdown File 4.2
.MDR ModPlug Compressed Module 4
.MDS TestComplete Project File 4.5
.MDS Media Descriptor File 4.5
.MDSX MEGA Saved Session 4.5
.MDT Microsoft Access Data File 4.3
.MDT GeoMedia Access Database Template 4
.MDW Access Workgroup File 4
.MDX Warcraft 3 Model File 4.5
.MDX Extended Media Descriptor File 4.4
.MDX MDict Dictionary File 3.7
.MDX Rational XDE Model File 3.5
.MDX Multiple Index File 3.4
.MDZIP MagicDraw Project Archive 4
.MEB PRO100 3D Interior Catalog Element 4.5
.MED Amiga MED Sound File 4.2
.MED RSView Development Project 3.5
.MEF Mamiya RAW Image 3.9
.MEG MEGA Data File 4.5
.MEGA Megacubo XML Metafile 4.5
.MEL Maya Embedded Language File 4.3
.MELL Mellel Word Processing File 3.5
.MELLEL Mellel Word Processing Document 4
.MEM FoxPro Variable File 4.7
.MEM GreekToMe Memories File 4.2
.MEM Parallels Desktop Memory Dump File 4
.MEM Virtual Game Station Memory File 3.6
.MEM Macro Editor Macro 3.6
.MEM Mnemosyne Card Collection 3.5
.MENC Windows Mobile Encrypted File 4.5
.MENU Quake 3 Engine Menu File 4.5
.MEO MEO Encrypted Archive 4
.MER RSView Development Runtime File 4.2
.MERLIN2 Merlin Project File 4
.MET eMule Resource File 4.2
.MET Presentation Manager Metafile 3.8
.MEX Macro Express File 3.5
.MF Gameplay Multifile 4.7
.MF Java Manifest File 4.6
.MF METAFONT File 4.5
.MFA Multimedia Fusion Development File 4.8
.MFA MobileFrame App File 3.6
.MFIL Blizzard Software Update File 3.9
.MFL Mozilla FastLoad File 4.5
.MFL ModFit LT Analysis Report File 3.5
.MFO Perl ModInfo Descriptor File 4.2
.MFO MediaFace Online Saved File 4
.MFO MobileFrame Object File 3.5
.MFP MediaFACE Project File 4.2
.MFP MobileFrame Package 4
.MFP Macromedia FlashPaper Document 3.5
.MFS MetFS Encrypted File System 3.5
.MFT Kaspersky File Table 4.5
.MFT MediaFACE Project Template 3.6
.MFU MobileFrame Update File 4
.MFW Mamiya Camera Raw File 4.2
.MFW MobileFrame Workflow Pack File 3.5
.MFX Multimedia Fusion Extension 4
.MGA Manga Document 4
.MGC Microsoft Clip Organizer Media Catalog 4.2
.MGC MGCSoft Equation Illustrator File 3.2
.MGCB Equation Illustrator Project File 4
.MGD77 MGD77 Data File 3.5
.MGDATABASE MacGourmet Deluxe Database File 4
.MGK ImageMagick Configuration File 4
.MGL Age of Empires 2 Replay File 4
.MGMF MindGenius Map File 3.5
.MGMT MindGenius 2-3 Template 3.5
.MGMX MindGenius XML Map File 4
.MGO MacGourmet Recipe File 4
.MGOURMET MacGourmet Deluxe Document 4
.MGOURMET4 MacGourmet Deluxe 4 Document 3.9
.MGS MGCSoft Vector Shapes File 3.5
.MGT Musicnotes Guitar Guru Song File 4.5
.MGTX MindGenius XML Template File 3.5
.MGV Yamaha MegaVoice File 4
.MGV PSP Video File 3.8
.MGX Rise of Nations Saved Game 4.7
.MGX Age of Empires 2 Expansion Replay File 4
.MHP Maths Helper Plus File 3.5
.MHS Xilinx XPS Hardware Specification File 4.5
.MHT MHTML Web Archive 4.2
.MHTML MIME HTML File 4
.MI4 Audio Player Firmware File 4
.MID MIDI File 4.5
.MID MapInfo Data File 3.9
.MIDI MIDI File 4.5
.MIF MapInfo Interchange Format File 4.4
.MIF Management Information Format 4
.MIF FrameMaker Interchange Format File 4
.MIFF Magick Image File 3.6
.MII Wii Virtual Avatar File 4.5
.MILK MilkDrop Winamp Plugin Preset 4.7
.MIM Multi-Purpose Internet Mail Message File 3.9
.MIME Multi-Purpose Internet Mail Extension 4
.MIN Okuma CNC Program File 4.2
.MIN MAX Interchange Notation File 3.8
.MIN Mint Source File 3.5
.MINDNODE MindNode Document 4
.MINESWEEPERSAVE-MS Minesweeper Saved Game 3.8
.MINIGSF Game Boy Advance Song File 4.4
.MINISO Mini Image Destination File 4
.MINIUSF Nintendo 64 Song File 4
.MINT Linux Mint Installer File 4.5
.MIO MioEngine Application File 4
.MIS Marble Blast Gold Mission File 4.5
.MIS Saved Game Mission File 4.2
.MIX Command & Conquer Data File 4.6
.MIX 3ds Max Motion Mixer File 4.5
.MIX Microsoft Image Exchange File 4
.MIX MotoGP Game File 4
.MJ2 Motion JPEG 2000 Video Clip 4.2
.MJD Adobe Acrobat MIME Encoded Job Definition File 4
.MJDOC MacJournal Document 4
.MJK Question File 4.4
.MJP MJPEG Video File 4.1
.MK Makefile 4.5
.MK3D Matroska 3D Video File 4.5
.MKA Matroska Audio File 4.2
.MKV Matroska Video File 4.5
.ML ML Source Code File 4.5
.MLB MyLabel Designer Deluxe Project File 4.2
.MLB Visual FoxPro Library 3.5
.MLC Microsoft Language Interface Pack 4.8
.MLC MobaLiveCD File 4
.MLK MasterCook Look File 4
.MLM MolMeccano File 4.5
.MLS Milestones Simplicity File 4.7
.MLS CrystalPlayer Playlist 4
.MM FreeMind Mind Map 4.6
.MM NeXtMidas Macro File 4.4
.MM Objective-C++ Source File 4.2
.MM6 Might and Magic 6 Saved Game 3.5
.MM6 Money Manager 6 File 3.5
.MMAP MindManager Map File 4.2
.MMC Microsoft Media Catalog 4.5
.MMDC MediaMonkey Device Configuration File 3.5
.MME Multi-Purpose Internet Mail 3.8
.MMF Meal-Master Recipe File 4.1
.MMF Microsoft Message File 3.8
.MMF Synthetic Music Mobile Application File 3.6
.MMIP MediaMonkey Installation Package 4.5
.MML FrameMaker Maker Markup Language File 4.2
.MML Microsoft Clip Organizer File 3.6
.MML MyMailList & AddressBook File 3.5
.MMLP Music Macro Language Project 4.5
.MMM Music Maker Arrangement File 4.4
.MMM Multiple Master Metric Data File 3.5
.MMM MiraMon Maps File 3.2
.MMM Money Manager File 3.2
.MMO Memory Map Overlay File 4.2
.MMP MixMeister Playlist 4
.MMP Master Album Maker Project 3.9
.MMP LMMS Project File 3.8
.MMP Symbian Project Specification File 3.8
.MMP MindManager Mind Map 3.8
.MMPZ LMMS Project File 4
.MMW Microsoft Clip Organizer Media Catalog File 4
.MMW AceMoney Money File 4
.MNC My Notes Center Notebook 4
.MNC AutoCAD Compiled Menu File 3.5
.MNG Multiple Network Graphic 4.2
.MNG Yamaha PSR Disk Manager File 3.2
.MNK My Notes Keeper Notebook 4
.MNL AutoCAD Menu LISP File 4
.MNO Macromedia Design Note 4
.MNR AutoCAD Menu Resource File 4
.MNS AutoCAD Interface Settings File 4
.MNT FoxPro Menu Memo 4
.MNU AutoCAD Interface Layout File 4
.MNU Adobe Photoshop Menu Customization File 3.5
.MNU TomTom Menu File 3.5
.MNV PlayStation Movie File 4.3
.MNX FoxPro Menu 4
.MO Machine Object File 4.5
.MO3 MO3 Audio File 4.2
.MOBI Mobipocket eBook 4.5
.MOBILECONFIG Apple Mobile Configuration File 4.5
.MOBILEPROVISION Xcode Mobile Provisioning Profile 4.6
.MOD Amiga Music Module File 4.5
.MOD Fortran Module File 4.2
.MOD GRUB Module 4
.MOD Camcorder Recorded Video File 4
.MOD AMPL Model File 3.8
.MOD Femap Model 3.2
.MOD ArchiCAD Module 3.2
.MOD Neverwinter Nights Module 3.2
.MODE Coda Syntax Mode File 4
.MODE1V3 Xcode Project Data File 3.2
.MODE2V3 Xcode Project Data File 3.5
.MODEL CATIA 3D Model FIle 4
.MODFEM Femap Model 4
.MODULE Drupal Module File 4.3
.MOF Managed Object Format File 4
.MOHO Anime Studio Animation Project 4
.MOI MOI Video File 4
.MOL MDL Molfile 4
.MOM Managed Object Model 4.5
.MONEY Money Data File 4
.MONTAGE Montage Screenplay File 4
.MOS Leaf Camera RAW File 4.2
.MOSAIC MacOSaiX Mosaic File 4
.MOT LightWave Motion File 4
.MOV Apple QuickTime Movie 4.3
.MOX ExtendSim Simulation Software Model 4
.MOX Montax Imposer Template Document 3.8
.MP LaTeX MetaPost File 4.2
.MP Maya PLE Project File 4
.MP11 Multisim 11 Project File 4.3
.MP2 Heroes of Might and Magic II Map File 3.7
.MP2 MPEG Layer II Compressed Audio File 3.7
.MP21 MPEG-21 Multimedia File 4
.MP21 AXMEDIS MPEG-21 Object 3.8
.MP2M Max Payne 2 Mod File 4.8
.MP2S Max Payne 2 Saved Game 4.6
.MP3 MP3 Audio File 4.6
.MP4 MPEG-4 Video File 4.5
.MPA MPEG-2 Audio File 4
.MPC Musepack Compressed Audio File 3.8
.MPCPL Media Player Classic Playlist 4.5
.MPD Microsoft Project Database 4.2
.MPD File List Creator Playlist 3.5
.MPDP MixPad Project File 3.8
.MPEG MPEG Movie 4.4
.MPF Microsoft Media Package FIle 4.3
.MPF MainActor Project File 3
.MPG MPEG Video File 4.3
.MPGA MPEG-1 Layer 3 Audio File 4.5
.MPGINDEX Adobe MPEG Index File 4
.MPH Photostory Deluxe Project 4.5
.MPJ Minitab Project File 4.3
.MPJ RoboHelp HTML Project 4
.MPJ messiahStudio Project File 3.8
.MPK Project64 Memory Pack File 4.5
.MPK ArcGIS Map Package 4.5
.MPKG Meta Package File 4.5
.MPKT MOPEKS Trial File 4.5
.MPL AVCHD Playlist File 3.8
.MPL MPL2 Subtitles File 3.8
.MPLS Blu-ray Movie Playlist File 3.8
.MPM Max Payne Modfication File 4.4
.MPO Multi Picture Object File 4.2
.MPP Microsoft Project File 4.2
.MPP MobileFrame Project Publisher File 3.9
.MPPZ MagicPlot Project File 4
.MPQ Blizzard Mo'PaQ File 4.6
.MPR FoxPro Generated Menu Program 4.2
.MPR FileMaker Dictionary File 4.2
.MPR Direct Mail Project File 3.5
.MPROJ Mine-imator Project 4.5
.MPS Pocket Streets Map File 4
.MPS Mathematical Programming System File 3.6
.MPS Max Payne Saved Game 3.2
.MPT Microsoft Project Template 4.2
.MPV MPEG Elementary Stream Video File 4
.MPX FoxPro Compiled Menu Program 4
.MPX Microsoft Project Exchange File 3.8
.MPZ Miradi Project File 4.5
.MPZ Red Eclipse Map File 3.5
.MQ5 MQL5 Source Code File 4
.MQO Metasequoia Document 4.3
.MQV Sony Movie Format File 4
.MRC mIRC Script File 4.3
.MRG MySQL Merge File 3.5
.MRG Now Contact Merge Template 3.5
.MRIMG Macrium Reflect Disk Image 3.5
.MRK DPOF Auto Print Order File 4.3
.MRML 3D Slicer Scene Description File 4
.MRP Mobile Application File 4.7
.MRS GunZ Game Data File 4.5
.MRT Stimulsoft Report File 4
.MRW Minolta Raw Image File 3.9
.MRXS MIRAX Virtual Slide File 3.6
.MS Maxwell Script 4.2
.MS 3ds Max Script File 3.8
.MS10 Multisim 10 Circuit Design File 4.6
.MS11 Multisim 11 Circuit Design File 4
.MS3D MilkShape 3D Model 4
.MSB Oracle Binary Message File 4
.MSC Microsoft Management Console Snap-in Control File 4.5
.MSC MuseScore Composition File 3.2
.MSCT MOPEKS Script File 4
.MSCZ MuseScore Compressed Score File 4.6
.MSD Map Service Definition File 4.5
.MSDVD Windows DVD Maker Project File 4.5
.MSE MediaShow Slideshow Project File 4
.MSE 3ds Max Encrypted MAXScript File 4
.MSF Mail Summary File 4.4
.MSF Blue Card Manager Merit Badge Mastersheet File 3.2
.MSF Miranda IM Skin File 3.2
.MSG Outlook Mail Message 4.2
.MSG Fallout Message File 4.1
.MSH Orbiter 3D Mesh File 4.5
.MSH Visual Communicator Project File 3
.MSHA Microsoft Help Asset File 4
.MSHC Microsoft Help Container File 4.5
.MSHI Microsoft Help Index File 4.5
.MSI Windows Installer Package 4.5
.MSIM mSecure Password Manager Backup File 4.5
.MSKN MediaMonkey Skin File 4
.MSL Magick Scripting Language File 4
.MSL Mapping Specification Language File 4
.MSM Windows Installer Merge Module 4
.MSM Multisim Circuit Design File 3.5
.MSN Host Blocking File 4.5
.MSO Microsoft Office Macro Reference File 4.2
.MSO Inline E-mail Attachment 3.6
.MSP Windows Installer Patch 4.3
.MSP Microsoft Paint Bitmap Image 4.3
.MSP MaxScript Page File 4
.MSP ClarisWorks Dictionary File 3.8
.MSPX Microsoft ASP.NET Web Page 4.1
.MSRCINCIDENT Windows Remote Assistance Invitation File 4.7
.MSS Microprocessor Software Specification File 4.5
.MSS MyScreenSaver Builder File 4.2
.MSSTYLES Windows XP Style 4.5
.MST Windows Installer Setup Transform File 4.7
.MST Corel Presentations Master Template File 4.5
.MSU Windows Vista Update Package 4.5
.MSV Memory Stick Voice File 3.3
.MSWMM Windows Movie Maker Project 4.6
.MTA Samsung AllShare Metadata File 3.9
.MTC Make the Cut! Project 4
.MTD Musicnotes Digital Sheet Music File 4.5
.MTE MadTracker 2 Envelope 4
.MTF Motorola Theme File 4
.MTF Multi Tracker File 4
.MTF Mortality Table File 3.8
.MTF MasterCook Tips 3.5
.MTF Translation Memory Translations File 3.5
.MTFF MadgeTech Data Logger Report 4.2
.MTH Derive Math File 4
.MTHD MOPEKS Method File 4
.MTI MadTracker Instrument 4
.MTL OBJ Material File 3.8
.MTM MultiTracker Module 4
.MTM Macrofocus TreeMap File 3.5
.MTP MadTracker 2 Pattern 4.4
.MTQ Mustaq Data File 3.8
.MTS AVCHD Video File 4.3
.MTS MEGA Tree Session File 4.2
.MTS MadTracker 2 Sample File 4
.MTV MTV Video Format File 4
.MTW Minitab Worksheet File 3.4
.MTX MadTracker 2 Extension 4.7
.MTX MetaStream Scene File 4.2
.MTXT MOPEKS Text File 4
.MTZ Compressed MetaStream Scene File 4.2
.MTZ MIUI Theme 4.2
.MU3 Myriad Packed Musical Score 4.2
.MUD Mudbox 3D Scene File 4
.MUD Textease Multi User Database 3.5
.MUI Myriad Instrument File 4.5
.MUI Multilingual User Interface File 4.5
.MUL Ultima Online Multi File 4
.MUL Deus Ex: HR Multiplexed Audio File 3.5
.MUM Windows Vista Update Package 4.2
.MUM MATLAB Unit Operation Model File 3.5
.MUP Music Publisher Score 4
.MUS Finale Notation File 4.3
.MUS Minecraft Music File 4.2
.MUS Electronic Arts Game Music File 4
.MUS Doom Music File 3.8
.MUSE Adobe Muse Website Project 3.8
.MUSX Finale Notation File 4.2
.MUX Trackmania Music File 4
.MUX Myriad Stand-Alone Music Score 3.5
.MV MivaScript File 4
.MVC Movie Collector Catalog 4.2
.MVC MivaScript Compiled File 4
.MVD Movie Edit Pro Movie File 4.4
.MVD MindView OS X Document 4
.MVDX MindView Windows Document 4
.MVE Infinity Engine Movie File 4
.MVEX Muvee autoProducer 6 Project File 4.2
.MVG Magick Vector Graphics File 4
.MVI AutoCAD Movie Command File 4.3
.MVM Photostory Deluxe Slideshow 4
.MVP MAGIX Video Project File 4.3
.MVP MoviePlus Project File 4.2
.MVS Microchip Verification Specification File 3.8
.MVY Video easy Project File 3.5
.MW MacWrite Text Document 4
.MW Maple Worksheet 4
.MWB MySQL Workbench Document 4.5
.MWD MarinerWrite Document 4
.MWF Translation Memory Word Find File 4
.MWF MapGuide Author Map Window File 4
.MWL Super Mario World Level 4
.MWP Lotus Word Pro SmartMaster File 4
.MWS Maple Classic Worksheet 4
.MWS MWave DSP Synth Instrument Extract 3
.MWX MapGuide Author Map Window XML File 4.8
.MWX MicroWorlds EX File 3.5
.MX Mathematica Serialized Package File 4
.MX2 Heroes of Might and Magic II Expansion Map File 3.5
.MX3 Mixcraft 3 Audio Project 3.5
.MX4 Mixcraft 4 Audio Project 3.5
.MX5 Mixcraft 5 Audio Project 4.2
.MX5TEMPLATE Mixcraft 5 Audio Project Template 3.5
.MXAD Mandelbrot Explorer All Data File 4
.MXADDON Maxthon Add-On File 4
.MXC2 MAGIX Cache File 4
.MXD ArcGIS Map Document 4.8
.MXE Macro Express Playable Macro 4
.MXF Material Exchange Format File 4.4
.MXF Maxis Font File 3.8
.MXG Miinoto Exchangeable Group File 3.5
.MXI Adobe Extension Information File 4.2
.MXI Maxwell Image 3.8
.MXL Compressed MusicXML File 4.2
.MXM Maxwell Material File 4.5
.MXMF Mobile XMF Ringtone File 3.4
.MXML Flex MXML Component 4.5
.MXP Adobe Extension Package 4
.MXS Maxwell Studio Scene File 4.5
.MXS Painter Color Mixer Pad File 3.5
.MXSKIN Maxthon Skin File 4
.MXT ArcGIS Map Template 4
.MXV MAGIX Video File 4
.MYAPP Visual Studio Application XML File 4.5
.MYCOLORS Stardock MyColors Theme File 4.8
.MYD MySQL Database Data File 4
.MYDOCS Send To My Documents 3.5
.MYI MySQL MyISAM Index File 4
.MYL MyLogo Maker Image 4
.MYO AccountEdge Company File 4
.MYR Myriad Music File 4
.MZP MAXScript Zip Package 4.3
.MZP WinArchiver Mountable Archive 4
.MZP Mozart Percussion File 3.2