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# Estensione del file Sviluppatore
0 .M - Objective-C Language Source Format Apple
1 .M!95 - Adobe Director For Mac Adobe Systems Incorporated
2 .M-JPEG - M-JPEG N/A
3 .M01 - MicroStation Modification Resource Bentley Systems, Incorporated
4 .M10 - Microsoft Money 2002 Data Microsoft Corporation
5 .M11 - Microsoft Money 2003 Data Microsoft Corporation
6 .M12 - Microsoft Money 2004 Data Format Schiller
7 .M13 - Microsoft Media Viewer Microsoft Corporation
8 .M14 - Microsoft Media Viewer Microsoft Corporation
9 .M15 - Apple QuickTime Format Moving Picture Experts Group
10 .M16 - Microsoft Money 2007 Data Microsoft Corporation
11 .M1A - MPEG-1 Audiostream Format N/A
12 .M1C - IBM Voice Type Languages Newuser IBM
13 .M1I - IBM Voice Type Languages Newuser N/A
14 .M1PG - IFinish Video Format Media 100
15 .M1S - MPEG-1 System Stream N/A
16 .M1V - Moving Pictures Experts Group Video (MPEG-1 IPB) N/A
17 .M2 - World Of Warcraft Model Object File Format Blizzard Entertainment
18 .M21 - MPEG-21 Video Format N/A
19 .M25 - Symantec Endpoint Protection Manager N/A
20 .M2A - MPEG-2 Audio N/A
21 .M2C - IBM Voice Type Languages Newuser IBM
22 .M2D - HTC Manila 2D For Windows Mobile Skin N/A
23 .M2DCT - HTC Manila 2D For Windows Mobile Skin N/A
24 .M2F - Maxthon Filter Package Maxthon International Limited
25 .M2I - IBM Voice Type Languages Newuser IBM
26 .M2L - Maxthon Language Package Maxthon International Limited
27 .M2M - TiMidity++ M2M Settings SourceForge.net
28 .M2P - MPEG-2 Stream File Format Moving Picture Experts Group
29 .M2R - Avaya Mib2Rules Perl Script N/A
30 .M2S - MPEG-2 Audio Video Format N/A
31 .M2T - MPEG-2 Transport Stream Format N/A
32 .M2TS - MPEG-2 Stream (Blu-Ray) Sony
33 .M2U - Maxthon Layout Maxthon International Limited
34 .M2V - MPEG-2 Packetized Elementary Stream N/A
35 .M3 - Blizzard StarCraft 2 MDX3 Model Format Blizzard Entertainment
36 .M32 - Duke Nukem 3D Script 3D Realms/Apogee Software Ltd.
37 .M3C - IBM Voice Type Languages Newuser IBM
38 .M3D - DIALux 3D Object Format N/A
39 .M3G - Nokia Mobile 3D Graphics Program Format Nokia
40 .M3H - Starcraft 2 Model Data Blizzard Entertainment, Inc.
41 .M3I - IBM Voice Type Languages Newuser IBM
42 .M3S - Myst III Exile Saved Game Ubisoft Entertainment S.A.
43 .M3T - Myst 3 Exile Text Ubisoft Entertainment S.A.
44 .M3U - MP3 Songs Playlist Format Nullsoft
45 .M3U8 - UTF-8 M3U Playlist Format N/A
46 .M3URL - SMIL MP3 Playlist N/A
47 .M3V - DJ Mix Pro Playlist N/A
48 .M3X - MAGIX Digital Photo Maker PhotoCD Playlist MAGIX AG
49 .M4 - M4 Preprocessor Macro Format N/A
50 .M4A - MPEG-4 Compressed Audio Format Apple
51 .M4B - MPEG-4 Audio Layer Audio Book Format Apple
52 .M4C - IBM Voice Type Language Newuser IBM
53 .M4D - Sage MAS 90 Data The Sage Group plc
54 .M4E - MPEG-4 Video Format N/A
55 .M4F - Sony Network Camera MPEG-4 Video Sony Corporation
56 .M4I - IBM Voice Type Languages Newuser IBM
57 .M4L - Sage MAS 90 Data The Sage Group plc
58 .M4P - Apple ITunes Music Store Audio Format Apple
59 .M4R - Apple IPhone Ringtone Format Apple
60 .M4S - Myst IV: Revelation Save Game Ubisoft Entertainment S.A.
61 .M4T - Sage MAS 90 Table The Sage Group plc
62 .M4U - MPEG-4 Playlist Format N/A
63 .M4V - MPEG-4 Video File Format Apple
64 .M51 - ARM Keil Tools Linker Listing ARM Holdings plc
65 .M64 - Mupen64 Movie Capture N/A
66 .M68 - Turbo Pascal Dos Embarcadero Technologies, Inc.
67 .M75 - Apple QuickTime Format Moving Picture Experts Group
68 .M7A - MapKing Map MapKing International Limited
69 .M7D - MapKing Navigation Map MapKing International Limited
70 .M7P - Multilizer PDF Translator Project N/A
71 .M8 - Heretic II MipMap Image Raven Software
72 .M?? - Ingres Modify Table/Index Actian Corporation
73 .MA - Autodesk Maya ASCII Scene Format Autodesk
74 .MA0 - Diablo II Act 1 Saved Map Progress Blizzard Entertainment, Inc.
75 .MA1 - Monarch Audio Format Monarch
76 .MA1.MMF - SMAF Synthetic Music Mobile Application Format N/A
77 .MA2 - Bibexcel Olle Persson
78 .MA2.MMF - SMAF Synthetic Music Mobile Application Format Yamaha Corporation
79 .MA3 - Harvard Graphics Macro Harvard Graphics
80 .MAB - Mozilla Address Book Format Mozilla
81 .MAC - MacPaint Bitmap Image Apple
82 .MACA - MacWrite Document Apple, Inc.
83 .MACBIN - MacBinary Archive Apple
84 .MACP - Apple Macintosh MacPaint Bitmap Image Apple, Inc.
85 .MACS - MADRIX Encrypted Script inoage GmbH
86 .MAD - Microsoft Access Module Shortcut Format Microsoft
87 .MAE - Maestro Molecular Model Format Schr
88 .MAF - Microsoft Access Form Shortcut Format Microsoft
89 .MAFF - Mozilla Archive Format Mozilla
90 .MAG - Microsoft Access Diagram Shortcut Format Microsoft
91 .MAGIC - Magic Mail Monitor Configuration SourceForge.net
92 .MAGIK - Magik Source Code Format GE
93 .MAHJONGTITANSSAVE-MS - Mahjong Titans Save Game Format Microsoft
94 .MAI - Microsoft Mail Message Format Microsoft
95 .MAILDB - MSN Mail N/A
96 .MAILHOST - E-mail Server Preferences Format Microsoft
97 .MAILLOC - Apple Mac OS X Finder Mail Internet Location Apple, Inc.
98 .MAILPLANELICENSE - Mailplane License Format uncomplex
99 .MAILSTATIONERY - Apple Mail Apple, Inc.
100 .MAILTOLOC - Apple Mail Mail Address Format Apple
101 .MAIN - FileMaker Dictionary FileMaker, Inc.
102 .MAJ - Camduct Job Autodesk, Inc.
103 .MAK - Make Format N/A
104 .MAKE - Makefile Apple
105 .MAKEFILE - Make Format N/A
106 .MAKER - Adobe Framemaker Adobe Systems Incorporated
107 .MAKI - Winamp MAKI Compiled Script Nullsoft, Inc.
108 .MAKO - Mako Tamplate Format Mako
109 .MAL - MadAppLauncher Settings Format MadAppLauncher
110 .MAM - Microsoft Access Macro Shortcut Format Microsoft
111 .MAML - Microsoft Assistance Markup Language Microsoft Corporation
112 .MAN - Unix Text Manual Format N/A
113 .MANAGED_MANIFEST - Silverlight Manifest Microsoft Corporation
114 .MANI - Mine-imator Project Format Mine-imator
115 .MANIFEST - Manifest Format Microsoft
116 .MANIFEST-DESKTOP - Ubuntu Desktop CD Manifest Canonical Ltd.
117 .MANM - Vietcong Game Data Format Pterodon
118 .MAO - Dragon Age Origins MAO XML BioWare
119 .MAP - Geographical Map Format Pierre-Emmanuel Gougelet
120 .MAPIMAIL - Windows Send To Mail Recipient Format N/A
121 .MAPLET - Maplet World Format Blitz Research
122 .MAPLIB - Mscape Map Hewlett-Packard Company
123 .MAPSDATA - Apple IOS Map Data Format Apple
124 .MAPX - Mapjects GRYD Webserver Format Mapjects Development
125 .MAQ - Microsoft Access Query Shortcut Format Microsoft
126 .MAR - Microsoft Access Report Shortcut Format Mozilla
127 .MARC - MAchine-Readable Cataloging (MARC) Document MarcEdit Development
128 .MARKDN - Markdown Markup Language Document Format John Gruber
129 .MARKDOWN - Markdown Markup Language Format John Gruber
130 .MARS - Adobe Mars Format Adobe Systems
131 .MARSHAL - Marshal Editor Data Migration Model Format RISE to Bloome Software
132 .MART - Martview Ebook Format MartView
133 .MAS - Microsoft Access Stored Procedures Format Microsoft
134 .MASH - Java Oracle Corporation
135 .MASK - SpeedGrade Color Mask Format Adobe Systems
136 .MASSEFFECTPROFILE - Mass Effect User Profile Electronic Arts
137 .MASSEFFECTSAVE - Mass Effect Saved Game Electronic Arts
138 .MASTER - ASP Master Page Format Microsoft
139 .MAT - Microsoft Access Table Shortcut Format Microsoft
140 .MATCH-RDB - RDB Richard Hughey - Kevin Karplus - Anders Krogh
141 .MATERIAL - Rigs Of Rods Texture Reference Format N/A
142 .MATH - AnalyticMath Paul Hunter
143 .MATLAB - Matlab Script N/A
144 .MATO - Atomic Combat Saved Game Format Mojiferous Industries
145 .MATPROJ - Dragon Age Origins Material BioWare
146 .MAU - Media Attachment Unit Format N/A
147 .MAUD - Amiga MAUD Sound N/A
148 .MAV - Microsoft Access View Format Microsoft
149 .MAW - Microsoft Access Data Access Page Format Microsoft
150 .MAX - 3D Studio Max Scene Format Autodesk
151 .MAXC - 3D Studio Max Container Format Autodesk
152 .MAXD - PaperPort Annotation N/A
153 .MAXM - Paperport N/A
154 .MAZ - Microsoft Windows Hover! Maze Format Hover
155 .MB - Autodesk Maya Binary Scene Format Autodesk
156 .MB1 - Monster Bash Game Data 3D Realms/Apogee Software Ltd.
157 .MB3 - Minimal Board Editor (MBE) SUIGYODO ONLINE
158 .MB4 - Model Builder Model Design Evan Design
159 .MBA - Martus Human Rights Bulletin System Beneficent Technology, Inc.
160 .MBAC - MascotCapsule Resource HI CORPORATION
161 .MBAS - MikroBasic Source Code MikroElektronika
162 .MBB - ManaBook Format Kodak
163 .MBBK - ManaBook Book Kit Format ManaBook Software
164 .MBC - Mulberry E-mail Client Cache Cyrus Daboo
165 .MBD - Multimedia Builder MP3 Authoring Format MediaChance
166 .MBDB - Apple IOS Backup Manifest Apple, Inc.
167 .MBDX - Apple IOS Backup Manifest Apple, Inc.
168 .MBE - MVP Baseball 2005 Game Electronic Arts, Inc.
169 .MBF - Microsoft Money Backup Format Microsoft
170 .MBFAVS - Stardent AVS X Bitmap Image N/A
171 .MBFS - Stardent AVS X Bitmap Image N/A
172 .MBFX - AVS X Image N/A
173 .MBG - Mailbag Assistant E-mail Archive Format Fookes
174 .MBI - MagicISO Multi-bootable Information Format MagicISO
175 .MBK - DBASE IV Multiple Index File Backup dataBased Intelligence
176 .MBKP - Memeo Instant Backup Backup Memeo
177 .MBL - Logger Pro Experiment Data Format Vernier
178 .MBM - EPOC Multi-bitmap Format N/A
179 .MBOX - Mail Mailbox Format N/A
180 .MBP - Mobipocket EBook Auxiliary Format Mobipocket
181 .MBP1 - Kindle Touch Annotation Amazon.com, Inc.
182 .MBR - Zune Smooth Streaming Format Microsoft
183 .MBS - Opera Mailbox Format Opera Software
184 .MBSA - Microsoft Baseline Security Analyzer Format Microsoft
185 .MBSB - Mamut Business Software Company Database Backup Mamut Software Ltd
186 .MBSYNCSTATE - Mbsync Folder Backup Michael R. Elkins
187 .MBT - Blue Card Manager Merit Badge Template Format Scout Management Software
188 .MBTEMMPLATE - ModelBaker Custom Template Directory Widget Press, Inc.
189 .MBV - JVC Everio MediaBrowser Movie Victor Company of Japan, Ltd.
190 .MBW - Easy Mail Backup Wizard Format Firesage Solutions
191 .MBX - E-mail Mailbox Format N/A
192 .MBZ - Pogoshell NES Emulator Plugin N/A
193 .MC - Microsoft Windows Localized Message Table Resource Microsoft Corporation
194 .MC1 - MedCalc Data Format MedCalc
195 .MC2 - MasterCook Cookbook Recipe Text Data Format ValuSoft
196 .MC3 - Bridge Design Modeler 3D Match-casting Geometry Control Interactive Design Systems
197 .MC4D - Cinema 4D 3D Graphic MAXON Computer GmbH
198 .MC5 - Poser 5 Material Format Smith Micro
199 .MC6 - Poser 6 Material Format Smith Micro
200 .MC8 - Mastercam V8 CNC Software, Inc.
201 .MC9 - Mastercam V9 CAD Format CNC
202 .MCA - Minecraft Anvil Format Mojang
203 .MCACC - MCACC Measurement Data Pioneer Europe NV
204 .MCB - NEPLAN Project N/A
205 .MCBN - Microsoft Excel 4 For Mac Chart N/A
206 .MCC - Amiga MUI External Class Library N/A
207 .MCD - VectorWorks Drawing Format Nemetschek AG
208 .MCDB - Adobe Premiere Pro Media Cache Database Adobe Systems Incorporated
209 .MCDX - Mathcad Prime Document Format PTC
210 .MCF - Mathcad Font Format Parametric Technology Corporation
211 .MCFI - Autodesk Maya Initial Fluid Cache Format Autodesk
212 .MCFP - Autodesk Maya Fluid Cache Playback Format Autodesk
213 .MCGAME - Minecraft Backup Format Minecraft Launcher
214 .MCI - Media Control Interface Command Script Format N/A
215 .MCK - Macro Keys Encrypted Macro NewSoftwares.net, Inc.
216 .MCL - Microsoft Media Center Application Shortcut Format Microsoft
217 .MCLEVEL - Minecraft Map Format Mojang Specifications
218 .MCMAC - MacGourmet MasterCook Document Mariner Software, Inc.
219 .MCMETA - Minecraft Animation Settings Format Mojang
220 .MCML - Microsoft Windows Media Center MCML Microsoft Corporation
221 .MCO - MSN Messenger Wink Format Microsoft
222 .MCP - MSN Content Plus Installer Format Archive Microsoft
223 .MCR - Autodesk 3D Studio Max Macroscript Format Autodesk
224 .MCRP - MobyExplorer Encrypted Format Bermin Software
225 .MCS - MathCAD Raster Picture Image Format Mathsoft
226 .MCSP - My Craft Studio Project Format Crafting.co.uk
227 .MCSX - My Craft Studio Professional Format Crafting.co.uk
228 .MCT - Musicator MIDI N/A
229 .MCUSW - Nokia Mobile Phones With Symbian Firmware Nokia Corporation
230 .MCV - ManyCam Effect N/A
231 .MCW - Microsoft Word 5 For Mac Document Format Microsoft
232 .MCWORLD - Minecraft World Backup Format Minecraft Launcher
233 .MCX - Mastercam X And X2 File Format CNC Software
234 .MCXE - MedicinesComplete Data Format Clinical & Biomedical Computing
235 .MCXML - Microsoft Office 2013 XML Settings Microsoft Corporation
236 .MCZ - Poser Compressed Material Format Smith Micro
237 .MD - MDCD Compressed File Archive John Gruber
238 .MD0 - Adobe Photoshop Format Browser Metadata Cache Format Alcohol Software
239 .MD03 - Adobe Director Adobe Systems Incorporated
240 .MD1 - GEAR CD Suite CD Image Format N/A
241 .MD2 - Quake 2 Model Format id Software
242 .MD2P - MessengerDiscovery Matt Holwood
243 .MD2S - MessengerDiscovery Matt Holwood
244 .MD3 - Quake 3 Model Format id Software
245 .MD4 - Quake 3 MD4 Skeletal Model Format id Software LLC
246 .MD5 - Checksum Format N/A
247 .MD5.TXT - Message Digest 5 Hash Format N/A
248 .MD5ANIM - Doom 3 ID Tech 4 Game Engine Model Animation Format id Software
249 .MD5CAMERA - Doom 3 ID Tech 4 Game Engine Model Camera Format id Software
250 .MD5MESH - Doom 3 ID Tech 4 Game Engine 3D Mesh Format id Software
251 .MD8 - GarageCUBE Modul8 Project Format MatchWare
252 .MDA - Microsoft Access Add-in Format Microsoft
253 .MDAT - REW Measurement John Mulcahy
254 .MDB - Microsoft Access Database Format Microsoft
255 .MDBACKUP - Apple IPhone Backup Format Apple
256 .MDBHTML - Microsoft Office Access HTML Document Format Microsoft
257 .MDBX - Access Based Database N/A
258 .MDC - Image Minolta RD175 N/A
259 .MDD - Point Oven Deformation Data Format Point Oven
260 .MDDATA - Apple IPhone Backup Data Format Apple
261 .MDE - Microsoft Access Compiled Database (application) Format Microsoft
262 .MDES - Trimaran Machine Description Trimaran Team
263 .MDF - Alcohol 120% Disc Image File Format Alcohol Software
264 .MDG - Enterprise Architect Sparx Systems Pty Ltd.
265 .MDHTML - Microsoft Access HTML Microsoft Corporation
266 .MDI - Microsoft Office Document Imaging File Format Microsoft
267 .MDIMPORTER - Spotlight Importer Setting Apple, Inc.
268 .MDINFO - Apple IPhone Info Format Apple
269 .MDK - Astra Schedule Schedule Ad Astra Information Systems, LLC
270 .MDL - Flight Simulator 95/98 3D Model Format Microsoft
271 .MDLE - Motion Description Language Extended N/A
272 .MDM - HLM Multivariate Data Matrix Format Scientific Software International
273 .MDMP - Microsoft Windows Minidump Format Microsoft
274 .MDN - Microsoft Access Blank Database Template Format N/A
275 .MDO - Alcohol 120% Split Image Alcohol Soft
276 .MDOWN - Markdown Markup Language Format John Gruber
277 .MDP - Microsoft Visual C++ Visual J++ MAK File (old Project Workspace) Microsoft
278 .MDPF - Mac OS X Modem Preferences Apple, Inc.
279 .MDPL - MacDraw II Apple, Inc.
280 .MDR - ZX Spectrum Microdrive Emulator N/A
281 .MDRC - MADRIX DMX Remote Configuration inoage GmbH
282 .MDRW - MacDraw Apple, Inc.
283 .MDS - Alcohol 120% Image File (media Descriptor File) Format N/A
284 .MDT - Microsoft Access Database Template Format Intergraph
285 .MDTEXT - Markdown Markup Language John Gruber
286 .MDTXT - Markdown Markup Language John Gruber
287 .MDUS - MessengerDiscovery Matt Holwood
288 .MDV - QLAY N/A
289 .MDW - Microsoft Access Workgroup Information Format N/A
290 .MDWN - Markdown Markup Language John Gruber
291 .MDX - Media Data EXtended Image Format DT Soft
292 .MDZ - Microsoft Access Wizard Template Format N/A
293 .MDZIP - MagicDraw Compressed Project Format No Magic
294 .ME - Readme Text Format N/A
295 .ME2HEADMORPH - Mass Effect 2 Head Morph BioWare
296 .ME2MOD - Mass Effect 2 Game Modification Format N/A
297 .MEA - Mastersizer 2000 Sample Analysis Malvern Instruments Ltd.
298 .MEB - PRO100 Library Format Ecru Software
299 .MECH - Pro/MECHANICA Settings Parametric Technology Corporation
300 .MECONTACT - Microsoft Live Messenger Microsoft Corporation
301 .MED - Amiga MED Sound Format RBF Software
302 .MEDIAWIKI - Mediawiki Source N/A
303 .MEF - Mamiya ZD MEF Image Format Mamiya
304 .MEG - MEGA Data Format MEGA Team
305 .MEGA - Megacubo Metafile Megacubo
306 .MEL - Maya Embedded Language Autodesk
307 .MELL - RedleX Mellel Document Format RedleX
308 .MELLEL - RedleX Mellel Document Format RedleX
309 .MEM - Microsoft Visual FoxPro Mem Format N/A
310 .MEMB - Pro/ENGINEER Temporary Parametric Technology Corporation
311 .MEN - MenuPro Restaurant Menu Design SoftCafe
312 .MENC - Microsoft Windows Mobile Encrypted Format Microsoft
313 .MENU - Apple Mac OS X SystemUIServer MenuExtra Plugin Format id Software
314 .MENUDATA - VMWare Cache VMware, Inc.
315 .MEO - MEO Encrypted Format NCH Software
316 .MEQ - Corel WordPerfect Macro Editor Print Queue Corel Corporation
317 .MER - Corel WordPerfect Macro Editor Resident Area Format Corel Corporation
318 .MERLIN2 - Merlin Project Format ProjectWizards
319 .MERLINLICENSE - Merlin License Format ProjectWizards
320 .MES - Corel WordPerfect Macro Editor Work Space Corel Corporation
321 .MESA - OpenGL GLUT SGI
322 .MESH - 3D Graphic Format Microsoft
323 .MET - EMule Cached Information Format eMule
324 .META - RealPlayer Metafile RealNetworks
325 .META4 - Metalink 4.0 N/A
326 .METADATA_NEVER_INDEX - Spotlight Never Index Format Apple
327 .METALINK - Metalink 3.0 N/A
328 .METASTOCK - Metastock Data Thomson Reuters
329 .METRICLOG - Apple IOS Diagnostic Apple, Inc.
330 .MEU - DOS Shell Menu Group Microsoft Corporation
331 .MEW - MultiEdit Configuration Multi Edit Software Incorporated.
332 .MEX - Corel WordPerfect Macro Editor Expound Format Insight Software Solutions
333 .MEX4 - Sun-4/SPARC Dynamically Linked Subroutines MathWorks, Inc.
334 .MEXDS - MATlab Dynamically Linked Subroutines MathWorks, Inc.
335 .MEXHP3 - Matlab HP9000/series 300 Dynamically Linked Subroutines MathWorks, Inc.
336 .MEXHP7 - Matlab HP9000/series 700 Dynamically Linked Subroutines MathWorks, Inc.
337 .MEXN - Matlab NeXT Dynamically Linked Subroutines MathWorks, Inc.
338 .MEXRS6 - Matlab IBM RS/6000 Dynamically Linked Subroutines MathWorks, Inc.
339 .MEXSG - Matlab Dynamically Linked Subroutine MathWorks, Inc.
340 .MEXW32 - MATlab Program Executable MathWorks, Inc.
341 .MF - Java Manifest Format Sun Microsystems
342 .MF2 - Authorware Mediator5 Multimedia Adobe Systems Incorporated
343 .MF4 - Version 4.0 Measurement Data Format Vector Informatik GmbH
344 .MFA - Multimedia Fusion Development Format Clickteam
345 .MFALIST - Ashampoo Photo Commander Slideshow List Ashampoo GmbH & Co. KG
346 .MFASL - Netscape XUL Fastload Format AOL Inc.
347 .MFCRIBBON-MS - MFC Ribbon Definition XML Format Microsoft
348 .MFD - Adobe Multiple Master Font Metrics Directory Adobe Systems Incorporated
349 .MFE - Character Studio Format N/A
350 .MFF - Cakewalk MIDI N/A
351 .MFG - ProEngineer Manufacturing Parametric Technology Corporation
352 .MFI - Windows 98 Resource Kit Microsoft Corporation
353 .MFIL - Blizzard Software Update Format Blizzard Entertainment
354 .MFJ - MOBCAL Data Jarrold Group - Physical and Analytical Chemistry
355 .MFK - Memsoft OS/2 Database N/A
356 .MFL - Mozilla Firefox XUL Fastload Format Mozilla
357 .MFM - VTeX Multiple Master Font Metrics MicroPress Inc.
358 .MFO - Mediaface Online CD Label Software Project Format Perl
359 .MFP - MediaFACE CD Label Software Format Neato
360 .MFPS - Scientific Calculator Plus Script CYZSoft
361 .MFR - Autodesk Moldflow Result Autodesk, Inc.
362 .MFS - MetFS Encrypted FUSE Based Formatsystem Format EnderUNIX
363 .MFT - Mediaface Project Template Format Neato
364 .MFU - Backdoor.Win32.Agent.mfu Virus Format N/A
365 .MFV - MobileFrame Device Pack Format MobileFrame
366 .MFW - Motorola MSS Box Firmware Format MobileFrame
367 .MFX - Multimedia Fusion Extension Format Clickteam
368 .MG - EarAche Audio N/A
369 .MG1 - MusiGenesis Project Kenneth Adams
370 .MG2 - Band-in-a-Box Song PG Music Inc.
371 .MG4 - Band-in-a-Box Song PG Music Inc.
372 .MG9 - Band-in-a-Box Song PG Music Inc.
373 .MGA - Manga Comics Document Format Manga Reader
374 .MGB - Paragon5 Gameboy Tracker Audio N/A
375 .MGC - MGCSoft Equation Illustrator Data Format Microsoft
376 .MGCB - MGCSoft Equation Illustrator Project Format MGCSoft
377 .MGD - Master Grade Gradebook Maxium Developments
378 .MGDATABASE - MacGourmet Deluxe Database Format Mariner Software
379 .MGE - MGE Data Server Project N/A
380 .MGF - ASCII-based 3D Rendering Materials And Geometry Format Lawrence Berkeley National Laboratory
381 .MGK - ImageMagick Settings Format ImageMagick Studios
382 .MGL - Age Of Empires II Age Of Kings Game Format Microsoft
383 .MGLR - Magellan Routes GeoVisu Development Team
384 .MGLT - Magellan Tracklogs GeoVisu Development Team
385 .MGLW - Magellan Waypoint GeoVisu Development Team
386 .MGM - MGCSoft Equation Editor Macro File Format MGCSoft
387 .MGMF - MindGenius Mind Map MindGenius
388 .MGMT - MindGenius 2-3 Template MindGenius
389 .MGMX - MindGenius Map Format MindGenius
390 .MGN - Modern Genealogy Database N/A
391 .MGO - MacGourmet Recipe Format Mariner Software
392 .MGOURMET - Mariner MacGourmet Document Format Mariner Software
393 .MGOURMET3 - Mariner MacGourmet Document Format Mariner Software
394 .MGR - MGR Bitmap Image N/A
395 .MGS - MGCSoft Vector Shapes Format MGCSoft
396 .MGSPOT - MacGourmet Metadata Mariner Software, Inc.
397 .MGT - ZX Spectrum Emulator Disk Image N/A
398 .MGTHEME - MacGourmet Theme Format Mariner Software
399 .MGTX - MindGenius XML Template Format MindGenius
400 .MGU - Band-in-a-Box MIDI PG Music Inc.
401 .MGV - Sony PSP Video Format Sony
402 .MGX - Micrografx Designer Drawing Format Micrografx, Inc.
403 .MGZ - Metal Gear Solid Game Archive Konami Corporation
404 .MHD - Fallout 3 Bethesda Softworks LLC
405 .MHE - MHwinEHE Project Procedimientos-Uno, S.L.
406 .MHK - Riven Movie Data Brøderbund Software, Inc.
407 .MHP - Mailshift Internet Mail Document N/A
408 .MHS - Xilinx Platform Studio Hardware Specification Format N/A
409 .MHT - Mime HTML (MHTML) Format N/A
410 .MHTENX - Egis Encrypted HTM Egis Technology Inc.
411 .MHTM - Mime HTML (MHTML) N/A
412 .MHTML - Mime MHTML Format N/A
413 .MHTMLENX - Egis Encrypted MHTML Egis Technology Inc.
414 .MHV - Husqvarna Viking Data Husqvarna Viking
415 .MI - AutoVue Graphic Plugin Oracle Corporation
416 .MI2 - Autodesk Softimage Autodesk, Inc.
417 .MI4 - NVidia PortalPlayer Firmware Update Format NVIDIA
418 .MIB - MyInfo Topic Backup Milenix Software Ltd.
419 .MIC - Microsoft Image Composer Image Format Microsoft
420 .MID - MIDI Audio Format N/A
421 .MIDI - MIDI-sequention Sound Format N/A
422 .MIF - ImageMagick Image Format Format Pitney Bowes Software
423 .MIFF - Magick Image ImageMagick Studio LLC
424 .MIG - Windows Easy Transfer Migration Data Format Microsoft
425 .MIH - MRtrix Image Header Brain Research Institute
426 .MII - Nintendo Wii Virtual Avatar Format Nintendo
427 .MIK - MapInfo MapImagery Encryption Key Pitney Bowes Software Inc. (MapInfo)
428 .MIL - Micro Illustrator Uncompressed Image N/A
429 .MILK - Winamp MilkDrop Plugin Configuration Format Nullsoft
430 .MILLPST - BobCAD Post Processor Data BobCAD-CAM Inc.
431 .MIM - Multi-Purpose Internet Mail Extensions Format Internet Engineering Task Force
432 .MIME - Multi-Purpose Internet Mail Extensions (MIME) File Format Format (RFC822) The Internet Engineering Task Force
433 .MIN - Minute Maker Format Okuma
434 .MINDNODE - MindNode Document Format Markus Müller
435 .MINE - Minecraft Map Format Mojang Specifications
436 .MINESWEEPERSAVE-MS - Microsoft MineSweeper Save Format Microsoft
437 .MINGW32 - Mingw Compiler MinGW.org
438 .MINI2SF - Nintendo DS Sound Information Format N/A
439 .MININCSF - NCSF Nintendo DS Audio Format Naram Qashat
440 .MINIPSF - Miniature PlayStation Sound Format N/A
441 .MINIPSF2 - Miniature PlayStation Sound Format N/A
442 .MINISO - DVDFab Miniso Disk Image Fengtao Software Inc.
443 .MINIUSF - Nintendo 64 Song Format N/A
444 .MINT - Linux Mint Installer Format Linux Mint
445 .MIO - MIO Multimedia Format Mioplanet Technologies
446 .MIP - Corel PaintShop Pro Multiple Image Print Format Corel
447 .MIPR - MacImage Hybrid CD-ROM Project Logiciels & Services Duhem
448 .MIR - Mini Image Ripper Disk Image Format Mini-Image Ripper
449 .MIRADI - Miradi Project Benetech Initiative
450 .MIS - Mission Format N/A
451 .MISO - MacImage ISO+ Project Logiciels & Services Duhem
452 .MISSION - MissionMaker Project Format Immersive Education
453 .MIT - MineEdit Inventory Template Format MineEdit
454 .MIV - MapImagery Vendor Profile MapImagery Pty Ltd.
455 .MIX - Microsoft PhotoDraw Image Microsoft
456 .MIZ - Winamp Compressed Midi N/A
457 .MJ2 - JPEG 2000 Motion Sequence Format (ISO 15444-3) Format N/A
458 .MJ3 - Id Software Online Sale id Software LLC
459 .MJBOOKTEMPLATE - MacJournal Book Template Mariner Software, Inc.
460 .MJD - Adobe Acrobat MIME Encoded Job Definition Format Adobe Systems
461 .MJDOC - MacJournal Document Format Mariner Software
462 .MJF - Mjuice MP3 Audio N/A
463 .MJG - Trojan N/A
464 .MJP - VTech MJP Video Format LG
465 .MJP2 - JPEG 2000 Motion Sequence Format (ISO 15444-3) N/A
466 .MJPG - Motion JPEG Video Format N/A
467 .MJR - Media Jukebox Registration J. River, Inc.
468 .MJZ - Trojan.Win32.Agent.mjz N/A
469 .MK - Make Format N/A
470 .MK3D - Matroska MKV 3D Stereoscopic Video Format Matroska
471 .MK4 - Schiller Medilog ECG Raw Data Format Schiller
472 .MKA - Matroska Audio Format Matroska
473 .MKB - Marmalade SDK Project Ideaworks3D Limited
474 .MKC - MagicKey Currency Exchange Rate Advanced Computer Innovations, Inc.
475 .MKD - Markdown Markup Language John Gruber
476 .MKDN - Markdown Markup Language John Gruber
477 .MKE - Microsoft Windows SDK Make Microsoft Corporation
478 .MKEXT - Mac OS X Mach Kernel Extension Memory Cache Apple, Inc.
479 .MKEY - CompeGPS Land Registration Key CompeGPS TEAM S.L.
480 .MKEYB - CompeGPS Land Registration Key CompeGPS TEAM S.L.
481 .MKH - WinMark Pro Mark N/A
482 .MKII - Mark2 SoundSystem Audio Cloanto Italia srl
483 .MKJ - MKJamz Audio N/A
484 .MKP - Cinestar Remote Control Configuration N/A
485 .MKR - Train Simulator Marker Microsoft Corporation
486 .MKS - Matroska Subtitles Stream VideoLAN Project Team
487 .MKT - Visual FoxPro Configuration Microsoft Corporation
488 .MKV - Matroska Video-audio Multimedia Format Matroska
489 .MKV3D - Matroska 3D Video Format N/A
490 .MKY - MagicKey Configuration Advanced Computer Innovations, Inc.
491 .MKZ - PokerOffice Database Backup PokerOffice.com
492 .ML - ML Language Source Code Format Robin Milner
493 .ML2 - Tripos MOL2 Molecule Hypercube, Inc.
494 .ML20 - Mercury Messenger For Mac Video N/A
495 .ML3 - Milestones Project KIDASA Software, Inc.
496 .ML4 - Milestones 4 Schedule KIDASA Software, Inc.
497 .ML5 - Milestones Project N/A
498 .ML9 - Milestones Professional 2004U Schedule N/A
499 .MLA - WorshipCenter Pro Document WorshipCenter Software
500 .MLB - Microsoft Windows Mobile Media Library Format Avanquest Software
501 .MLC - Microsoft Windows Language Interface Pack Format Microsoft
502 .MLD - I-Melody Format For I-Mode N/A
503 .MLE - MAirList Event List Dr. Torben Weibert
504 .MLF - Package Download Profile N/A
505 .MLG - IBM Communications Server Message IBM
506 .MLI - F# Source Code N/A
507 .MLIB - Model Library Richard Hughey - Kevin Karplus - Anders Krogh
508 .MLK - Sierra MasterCook Look Format ValuSoft
509 .MLL - AutoDesk Maya Plug-in Format Autodesk, Inc.
510 .MLM - Novell GroupWise Saved Email Message Novell, Inc.
511 .MLN - Alchemy Source The Alchemy Team
512 .MLOCATE - Gnome Desktop The GNOME Project
513 .MLP - Meridian Lossless Packing Audio Format Meridian Audio
514 .MLR - Mollier Sketcher IV Produkt AB
515 .MLS - Miles Sound Tools Compressed DLS Format N/A
516 .MLSXML - Skype XML Skype Limited
517 .MLT - Forecast Pro Multivariate Forecast Business Forecast Systems, Inc.
518 .MLV - LabVIEW Mathscript National Instruments Corporation
519 .MLW - MainLog Data N/A
520 .MLX - Starcraft Saved Game Blizzard Entertainment, Inc.
521 .MLY - OCaml Ocamlyacc Input N/A
522 .MM - Apple Xcode Core Objective-C Program Source Code Format N/A
523 .MM1 - ActiveXperts MMS Toolkit Settings ActiveXperts Software B.V.
524 .MM3 - Mortgage Minder Saved Mortgage Configuration CW Technical Services
525 .MM4 - Microsoft Windows Word Processing Format Microsoft Corporation
526 .MM6 - Might And Magic 6 Saved Game Format Ubisoft Entertainment S.A.
527 .MM7 - Might And Magic 7 Saved Game Format N/A
528 .MM8 - MusicMaker V8 Audio Format N/A
529 .MMA - Master Album Maker Album Format Intrepid Mouse
530 .MMAP - MindManager Map Format Mindjet
531 .MMAS - MindManager Theme Mindjet
532 .MMAT - MindManager Template Format Mindjet
533 .MMB - MultiMedia Builder www.MediaChance.com
534 .MMC - Microsoft Office XP Media Content Format Microsoft
535 .MMCH - CodeWarrior Compiled Hdr Freescale Semiconductor, Inc.
536 .MMCOLLECTION - Microsoft Outlook Mail Manager Plug-in Collection Format Microsoft
537 .MMD - Mangodata Multi-user Database MightyMango
538 .MMDC - MediaMonkey Mobile Device Settings Format Ventis Media
539 .MMDF - Multi-channel Memorandum Distribution Facility Mailbox Format N/A
540 .MMDL - SAPPHIRE Structure Model MITEK HOLDINGS, INC.
541 .MMDR - Adobe Director Adobe Systems Incorporated
542 .MME - Multipurpose Internet Mail Extensions Format N/A
543 .MMF - Microsoft Mail Message Format Microsoft
544 .MMG - MKVToolNix Muxing Settings Moritz Bunkus
545 .MMH - Dragon Age Model Mesh Heirarchy BioWare
546 .MMIP - MediaMonkey Installation Format Ventis Media
547 .MMJS - Adobe JavaScript Document Adobe Systems Incorporated
548 .MMK - MACSIMUS Define Prof. RNDr. Jiri Kolafa, CSc.
549 .MML - Adobe FrameMaker Format Adobe Systems
550 .MMM - MultiMedia Movie Format (RIFF RMMP) Microsoft Corporation
551 .MMN - Memory-Map Navigator Overlay Object Memory-Map, Inc.
552 .MMO - RapidFile Memo Document Format N/A
553 .MMP - MixMeister Studio Playlist Format MixMeister, LLC.
554 .MMPA - MoreMotion Application Studio Page MOR YAZILIM
555 .MMPF - CodeWarrior Preference Freescale Semiconductor, Inc.
556 .MMPR - CodeWarrior Project Freescale Semiconductor, Inc.
557 .MMPZ - Linux MultiMedia Studio Project SourceForge.net
558 .MMRC - MADRIX MIDI Remote Configuration inoage GmbH
559 .MMS - Miles Sound Tools RAD Game Tools, Inc.
560 .MMSW - Movie Magic Screenwriter Document Write Brothers, Inc.
561 .MMT - CoCo Systems VisiMap CoCo Systems Ltd.
562 .MMU - MyPM Merge Data Format Midori Media
563 .MMV - MicroMV Movie Format Sony
564 .MMW - AceMoney Financial Data Format MechCAD Software
565 .MMX - Command And Conquer Game Westwood Studios (EA)
566 .MMZ - MusicMatch Theme N/A
567 .MN1 - Microsoft Money Version 1 Data Microsoft Corporation
568 .MN2 - Descent 2 Mission Interplay Entertainment Corporation
569 .MN3 - Descent 3 Mission Interplay Entertainment Corporation
570 .MN4 - Microsoft Money 95 Data Microsoft Corporation
571 .MN5 - Microsoft Money 97 Data Microsoft Corporation
572 .MN6 - Microsoft Money 98 Data Microsoft Corporation
573 .MN7 - Microsoft Money 99 Data Microsoft Corporation
574 .MN8 - Microsoft Money 2000 Data Microsoft Corporation
575 .MN9 - Microsoft Money 2001 Data Microsoft Corporation
576 .MNB - MuPAD SciFace Software GmbH & Co.
577 .MNC - AutoCAD Compiled Menu Format Autodesk, Inc.
578 .MND - AutoCAD Menu Compiler Autodesk, Inc.
579 .MNE - Microsoft Money Microsoft Corporation
580 .MNF - ADAMS/Flex MSC Software Corporation
581 .MNG - Multiple Network Graphics N/A
582 .MNH - Master Navigator Header Format Sapper Oy
583 .MNI - Star Trek Elite Force 2 Game Activision
584 .MNIT - FlashPeak SlimBrowser FlashPeak Inc.
585 .MNK - My Notes Keeper Notebook Format Wpg Computing
586 .MNL - Autodesk AutoCAD Menu LISP Format Autodesk
587 .MNM - Autodesk 3D Studio Max Character Studio Marker Name Format Autodesk
588 .MNO - Macromedia Design Note Adobe Systems
589 .MNP - Ultrasoft Money Ultrasoft Digital Media
590 .MNR - Autodesk AutoCAD Compiled Menu Format Autodesk
591 .MNS - AutoCAD Interface Settings Format Autodesk
592 .MNT - Visual FoxPro Additional Menu Description Format N/A
593 .MNU - Autodesk AutoCAD Menu Format Autodesk
594 .MNV - Sony PlayStation Movie Format Sony
595 .MNX - Visual FoxPro Main (DBF) Menu Description Format N/A
596 .MNY - Microsoft Money Data Format Microsoft
597 .MO - GNU Gettext Machine Object Format N/A
598 .MO3 - MO3 MOD Audio Format Un4seen Developments
599 .MO? - Standard Mail Archive N/A
600 .MOB - MOBTV Video Format MediaCorp
601 .MOBI - Mobipocket EBook Format Amazon
602 .MOBILECONFIG - Apple IPhone Mobile Configuration Profile Apple
603 .MOBILEPROVISION - IOS Mobile Device Provisioning Profile Format Apple
604 .MOC - MOCHA Java Script N/A
605 .MOCHA - Adobe Mocha For Adobe After Effects Adobe Systems Incorporated
606 .MOD - Hard Disk Camera Movie MPEG-2 Program Stream Format N/A
607 .MODD - Sony Video Analysis Format Sony
608 .MODE - Coda For Mac Plugin Format Panic
609 .MODE1V3 - Xcode Project Settings Apple, Inc.
610 .MODE2V3 - Xcode Project Related Apple, Inc.
611 .MODEL - CATIA V4 Model Format Dassault Systemes
612 .MODELPROJ - Microsoft Visual Studio Modelling Project Microsoft Corporation
613 .MODULE - Drupal Module Format Drupal
614 .MODUS - Adobe Mocha For Adobe After Effects Modus Adobe Systems Incorporated
615 .MOF - Systems Management Server Managed Object Format Desktop Management Task Force
616 .MOFF - Sony AVCHD Index Format Sony
617 .MOG - Football Mogul Sports Mogul Inc.
618 .MOGG - Multitrack Digital Audio Format N/A
619 .MOHO - Anime Studio Animation Project Format Smith Micro
620 .MOI - JVC Everio Digital Audio Format N/A
621 .MOJITO - Limewire Kademlia Lime Wire LLC.
622 .MOKEY - Adobe Mocha For Adobe After Effects Mokey Adobe Systems Incorporated
623 .MOL - MDL Molfile Molecule Format Symyx Technologies
624 .MOL2 - Portable Representation Of A SYBYL Molecule Tripos, L.P.
625 .MOLOGIQ - HTC EVO 3D N/A
626 .MOM - Managed Object Model Apple
627 .MOMMA - Offspring Fling Replay Format KPULV
628 .MON - Firefox Monday Bookmark Backup Mozilla Corporation
629 .MONET - Adobe Mocha For Adobe After Effects Monet Adobe Systems Incorporated
630 .MONEY - Money Data Format Jumsoft
631 .MONEYWELL - MoneyWell Financial Data Format No Thirst Software
632 .MONITORPANEL - Apple Mac OS X Display Panel Extension Apple, Inc.
633 .MONO - Bi-level Bitmap N/A
634 .MONTAGE - Montage Screenplay Format Mariner Software
635 .MONTE - CRiSP Harvest School of Aquatic & Fishery Sciences, University of Washington
636 .MOO - Apple QuickTime Movie Clip Apple, Inc.
637 .MOOD - Amarok Moodbar Data N/A
638 .MOOV - Apple QuickTime Movie Format Apple
639 .MOP - MOPAC Input Format N/A
640 .MOPINT - Mopac Internal Chemical Modeller Input N/A
641 .MOPOUT - MOPAC Chemical Output N/A
642 .MOPP - Havok Engine Havok.com Inc.
643 .MOR - Corel Shared Writing Tools Corel Corporation
644 .MORG - Morg umonkey-tools
645 .MORSE - Ringtone Morse Code N/A
646 .MOS - Mamiya Digital Camera RAW Image Format Leaf Imaging
647 .MOSAIC - MacOSaiX Mosaic Format Frank M. Midgley
648 .MOSS - Netscape Navigator For Mac HTML AOL Inc.
649 .MOT - LightWave Motion Format NewTek
650 .MOTN - Apple Motion Motion Apple, Inc.
651 .MOTOR - Adobe Mocha For Adobe After Effects Motor Adobe Systems Incorporated
652 .MOU - MOU Compressed Format WinMount International
653 .MOV - Apple QuickTime Digital Movie Format Apple
654 .MOVIE - Apple QuickTime Movie Format Apple
655 .MOX - ExtendSim Model Format Imagine That
656 .MOXEL - Adobe Mocha For Adobe After Effects Moxel Adobe Systems Incorporated
657 .MOZ - Netscape Temporary Cache Format N/A
658 .MOZ-BACKUP - Mozilla Backup Mozilla Corporation
659 .MOZ-DELETE - Mozilla Firefox Update Mozilla Corporation
660 .MOZ-UPGRADE - Mozilla Firefox Upgrade Mozilla Corporation
661 .MOZEML - Mozilla Thunderbird Mail Message Mozilla Corporation
662 .MP - Autodesk Maya Personal Learning Edition Format Autodesk
663 .MP+ - MPEG Plus Audio N/A
664 .MP1 - MPEG Audio Stream, Layer I Format N/A
665 .MP10 - NI Multisim V10 Project Format National Instruments
666 .MP11 - NI Multisim V11 Project Format National Instruments
667 .MP2 - Sound File (MPEG-1 Layer II Audio Stream) Moving Picture Experts Group
668 .MP21 - MPEG-21 Multimedia Format N/A
669 .MP2A - Sound File (MPEG-1 Layer II Audio Stream) N/A
670 .MP2M - Max Payne 2 Mod Format Rockstar Games
671 .MP2S - Max Payne 2 Saved Game Format Rockstar Games
672 .MP2V - MPEG Video Format N/A
673 .MP3 - Compressed Audio And Music File, Mp3 Songs Or Ringtones Moving Picture Experts Group
674 .MP3A - Renamed MP3 N/A
675 .MP3G - WinCDG Pro MP3+G Karaoke TriceraSoft
676 .MP4 - MPEG-4 Video File Format Moving Picture Experts Group
677 .MP4.INFOVID - Parrot AR Drone And Gyro Flyer Video N/A
678 .MP4A - MPEG-4 MP4A Codec Audio Apple, Inc.
679 .MP4B - MPEG-4 Audio Layer Bookmarkable Apple, Inc.
680 .MP4V - MPEG-4 Video Format Moving Picture Experts Group
681 .MP5 - Maple Windows DOS Waterloo Maple Inc.
682 .MP7 - NI Multisim V7 Project Format National Instruments
683 .MP8 - NI Multisim V8 Project National Instruments Corporation
684 .MP9 - NI Multisim V9 Project Format National Instruments
685 .MP? - LoseThos Compiler Map Terry A. Davis
686 .MPA - MPEG Audio Format N/A
687 .MPB - MyPhoneExplorer Backup Format Franz Josef Wechselberger
688 .MPC - MusePack Audio Format Musepack
689 .MPCPL - Media Player Classics Playlist Format Media Player Classic
690 .MPD - Microsoft Project Database Format Microsoft
691 .MPDB - Windows Media Player Database Microsoft Corporation
692 .MPDCONF - Music Player Daemon Settings Format The MPD Team
693 .MPDP - MixPad Project Format NCH Software
694 .MPDS - MADRIX Plexus Settings inoage GmbH
695 .MPE - MPEG Movie (Motion Pictures Experts Group) N/A
696 .MPEG - MPEG Movie N/A
697 .MPEG1 - Multiplexed MPEG-1/2 Format N/A
698 .MPEG2 - Multiplexed MPEG-1/2 N/A
699 .MPEG4 - MPEG-4 Video Format N/A
700 .MPEGA - MPEG Sound N/A
701 .MPF - Microsoft Design Gallery Format Microsoft
702 .MPG - MPEG 1 Video File Format N/A
703 .MPG2 - MPEG-2 Video Format N/A
704 .MPG3 - MP3 Audio File For Mac N/A
705 .MPG4 - MPEG-4 Video N/A
706 .MPGA - Mpeg-1 Layer3 Audio Stream N/A
707 .MPGINDEX - Adobe MPEG Index Format Adobe Systems
708 .MPGV - MPEG-2 Video N/A
709 .MPH - Microsoft Publisher N/A
710 .MPI - InstallJammer Project Format The InstallJammer Team
711 .MPJ - MINITAB Spreadsheet Project Format Adobe Systems
712 .MPK - Painkiller Overdose Game Map Format Mindware Studios, s.r.o.
713 .MPKG - Meta Package Format N/A
714 .MPKT - MOPEKS Trial MOPEKS Organisation
715 .MPL - AVCHD Playlist Format Sony
716 .MPLF - CodeWarrior Library Freescale Semiconductor, Inc.
717 .MPLS - Blu-ray Movie Playlist Information Format Blu-ray Disc Association
718 .MPM - Corel WordPerfect MathPlan Macro Format Corel Corporation
719 .MPNT - MacPaint Image Format Apple, Inc.
720 .MPO - CIPA Multi-Picture Format CIPA
721 .MPP - Microsoft Project Plan Format Microsoft
722 .MPPX - Microsoft Project Project Microsoft Corporation
723 .MPPZ - MagicPlot Project Format Magicplot Systems
724 .MPP_ - Microsoft Project For Mac Plan N/A
725 .MPQ - Blizzard Entertainment Archive Blizzard Entertainment, Inc.
726 .MPQE - Blizzard Encrypted Game Data Blizzard Entertainment, Inc.
727 .MPR - Visual FoxPro Generated Menu Program N/A
728 .MPRJ - Maschine Project Native Instruments, Inc.
729 .MPS - Microsoft Pocket Streets Map Format Microsoft
730 .MPSUB - Subtitle Format MPlayer
731 .MPSY - CodeWarrior Debug Symb Freescale Semiconductor, Inc.
732 .MPS_ - MPW Shell Joshua Juran
733 .MPT - Microsoft Project Template Tile Microsoft
734 .MPU - MPEG Layer 3 Audio Format N/A
735 .MPV - MPEG 1 Video Format Moving Picture Experts Group
736 .MPV2 - MPEG II Video Format N/A
737 .MPVF - CompeGPS Land Fast Vector Map CompeGPS TEAM S.L.
738 .MPW - Microsoft Project Workspace Format Microsoft
739 .MPWD - MacWrite Pro Apple, Inc.
740 .MPWR - MacWrite Pro Apple, Inc.
741 .MPX - Microsoft Project Export Format Microsoft
742 .MPZ - Miradi Project Format Benetech
743 .MPZIP - Multisim Pack Format National Instruments
744 .MP_ - Mobile Phone Sound Format N/A
745 .MQ4 - MetaTrader Custom Indicator Format MetaQuotes Software
746 .MQH - MetaTrader Trading Terminal MetaQuotes Software Corp.
747 .MQL - MetaTrader Indicator MetaQuotes Software Corp.
748 .MQO - Metasequoia 3D Image Format Metasequoia
749 .MQT - MetaQuotes Language 4 MQL4 Template MetaQuotes Software Corp.
750 .MQV - Sony Movie Player File Format Sony
751 .MRAW - Photron Camera RAW Image Photron USA, Inc.
752 .MRB - C++ Multiple Resolution Bitmap Graphic Format Microsoft
753 .MRC - MIRC Script Format mIRC
754 .MRD - MathRevolt Infinity Document MathRevolt
755 .MREC - MADRIX Record inoage GmbH
756 .MRF - Macintosh Font Apple, Inc.
757 .MRG - MySQL Reference Format MySQL
758 .MRIMG - Macrium Reflect Disk Image Backup Paramount Software UK
759 .MRK - DPOF Digital Print Order Format Auto Print Order Format N/A
760 .MRL - MRLR Multimedia Retrival Markup Language N/A
761 .MRM - Gothic 2 JoWooD Entertainment AG
762 .MRML - 3D Slicer Scene Description Format BWH
763 .MRO - SharpEye Music Reader Graham Jones
764 .MRP - Infinity Solution Plot MathRevolt
765 .MRS - Corel WordPerfect Macro Resource Format Corel Corporation
766 .MRT - Microsoft Visio 2010 Installation Archive Format Microsoft
767 .MRV - MarvinSketch ChemAxon Ltd.
768 .MRW - Minolta Dimage RAW Image Format Minolta
769 .MRXS - MIRAX Virtual Slide Format Carl Zeiss MicroImaging
770 .MS - 3D Studio Max Script Source Code Autodesk
771 .MS-TNEF - Microsoft Transport Neutral Encapsulation Format Microsoft
772 .MS1 - VirtualBus Map Format VIrtualBus
773 .MS10 - NI Multisim V10 Circuit Design Format National Instruments
774 .MS11 - NI Multisim V11 Circuit Design Format National Instruments
775 .MS2 - SEQUEST Ms2 N/A
776 .MS3D - MilkShape 3D Model Format Chumbalum Soft
777 .MS7 - NI Multisim V7 Circuit Design Format National Instruments
778 .MS8 - NI Multisim V8 Circuit Design Format National Instruments
779 .MS9 - NI Multisim V9 Circuit Design Format National Instruments
780 .MSA - Magic Shadow Archiver Atari Disk Image N/A
781 .MSB - The Bat! Format RITLabs SRL
782 .MSC - Microsoft Management Console Control Format Microsoft
783 .MSCG - Microsoft Clip Art Gallery For Mac N/A
784 .MSCR - Rename Master Scrip JackAss JoeJoe
785 .MSCT - MOPEKS Script MOPEKS Organisation
786 .MSCX - MuseScore Music Score Format The MuseScore Team
787 .MSCX, - MuseScore Music Score Backup Werner Schweer
788 .MSCZ - MuseScore Compressed Music Score Format The MuseScore Team
789 .MSCZ, - MuseScore Music Score Backup Werner Schweer
790 .MSD - Map Service Definition Format ESRI
791 .MSDEV - Microsoft Visual C+ Make Microsoft Corporation
792 .MSDL - Manchester Scene Description Language N/A
793 .MSDM - Microsoft Windows Microsoft Corporation
794 .MSDVD - Microsoft Windows DVD Maker Format Microsoft
795 .MSE - 3D Studio Max Encrypted MAXScript Format Autodesk
796 .MSE-INSTALLER - Magic Set Editor Installer SourceForge.net
797 .MSF - Mozilla Thunderbird Mail Summary Format N/A
798 .MSG - Saved Email Message Microsoft
799 .MSGR - Microsoft Graph 5 N/A
800 .MSH - MASH Microsoft Agent Script Helper Format Martin Schweiger
801 .MSHA - Microsoft Help Library Help Manifest Format Microsoft
802 .MSHC - Microsoft Help Container Format Microsoft
803 .MSHDB - Ministry Scheduler Pro Database Rotunda Software
804 .MSHI - Microsoft Help Index Format Microsoft
805 .MSHXML - Microsoft XML Typedata Microsoft Corporation
806 .MSI - Microsoft Windows Installer Installation Package Microsoft
807 .MSIE - Microsoft Internet Explorer For Mac HTML N/A
808 .MSIF - MyLabel Designer Deluxe Label Format Avanquest
809 .MSIL - Microsoft Intermediate Language N/A
810 .MSJ - MicroSurvey CAD Temporary MicroSurvey Software Inc.
811 .MSK - Corel PaintShop Photo Pro Mask Image Format Corel
812 .MSKIN - Maxthon Skin Maxthon International Limited
813 .MSKN - MediaMonkey Skin Format Ventis Media
814 .MSL - Miranda IM Smiley Definitions Miranda
815 .MSLZ - Archive N/A
816 .MSM - Windows Installer Merge Module Microsoft
817 .MSMESSAGESTORE - Windows Mail Message Information Database Microsoft Corporation
818 .MSN - Microsoft Windows Network Related Format Microsoft
819 .MSO - Microsoft Organization Chart Chart Format Microsoft
820 .MSOF - Microsoft Office For Mac Microsoft Corporation
821 .MSP - Windows Installer Patch Format Microsoft
822 .MSPX - Microsoft XML-based Web Page Microsoft
823 .MSRCINCIDENT - Microsoft Windows Remote Assistance Request Format Microsoft
824 .MSS - Miles Sound System DLS 1 Sound Format N/A
825 .MSSTYLE - Windows XP Unsigned Style N/A
826 .MSSTYLES - Microsoft Windows Resources Themes Luna Format Microsoft
827 .MST - Windows Installer Transform Script Format Microsoft
828 .MSTAT - SAM Domain Output Richard Hughey - Kevin Karplus - Anders Krogh
829 .MSTT - Prosa Minispecification Insoft Oy.
830 .MSU - Microsoft Update Standalone Package Format Microsoft
831 .MSV - Sony Memory Stick Compressed Voice Files Sony
832 .MSVC - Microsoft Visual C++ Compiler Makefile Microsoft Corporation
833 .MSW - Microsoft Word 5 Document Format Microsoft
834 .MSWD - Microsoft Word For Mac Document Microsoft Corporation
835 .MSWK - Microsoft Works For Mac N/A
836 .MSWMM - Microsoft Windows Movie Maker Project Format Microsoft
837 .MSX - Age Of Empires II Saved Game Microsoft Studios
838 .MSYM - ArchiCAD For MAC Geometric Description Language Graphisoft
839 .MSZ - MediaMonkey Skin Ventis Media, Inc.
840 .MS_ - Microsoft Windows Winhelp Compressed Microsoft Corporation
841 .MT2 - MadTracker 2 Module Format MadTracker
842 .MT9 - MT9 Audio Format ETRI
843 .MTA - Samsung AllShare Metadata Format Samsung
844 .MTB - MediaTracker Database Backup Digistore Solutions (S) Pte. Ltd.
845 .MTC - MediaTracker Database Digistore Solutions (S) Pte. Ltd.
846 .MTD - Musicnotes Digital Music Sheet Format Musicnotes
847 .MTDD - MEDITECH Document Definition N/A
848 .MTE - MadTracker Envelope Gile N/A
849 .MTF - Motorola Theme Format Motorola
850 .MTG - Making The Grade Jay Klein Productions
851 .MTH - Derive Math Format N/A
852 .MTHD - MOPEKS Method MOPEKS Organisation
853 .MTI - MadTracker 2 Instrument Format N/A
854 .MTIFF - Multi-page Tiff N/A
855 .MTK - MPU-401 Trakker N/A
856 .MTKEY - ProDAD Heroglyph License proDAD Inc.
857 .MTKT - MTK GPS Receiver Data GeoVisu Development Team
858 .MTL - OBJ Material Format N/A
859 .MTM - MultiTracker Music Module (MOD) Format N/A
860 .MTML - Meaningful Text Markup Language N/A
861 .MTN - Match! Database Crystal Impact GbR
862 .MTO - FastCAM MTO Data FastCAM Inc.
863 .MTP - Minitab Portable Worksheet Format N/A
864 .MTR - RealFight Radio Control Knife Edge Software
865 .MTRA - MascotCapsule Resource HI CORPORATION
866 .MTS - AVCHD MPEG-2 Transport Stream Format N/A
867 .MTS1 - MPEG-2 Transport Stream N/A
868 .MTT - Microsoft Messenger Saved Contact Format Format Microsoft
869 .MTV - MTV Video Format N/A
870 .MTW - Minitab Data Format Minitab
871 .MTX - Microsoft Visual Studio Manual Test Text Format N/A
872 .MTXT - MOPEKS Problem MOPEKS Organisation
873 .MTZ - Compressed MetaStream Scene Format MIUI
874 .MT_ - Encore Compressed GVOX
875 .MU - Corel Quattro Pro For DOS Menu Definition Format Corel Corporation
876 .MU3 - Myriad Packed Musical Score Myriad Software
877 .MUC - Music Collector Collection Data Bitz & Pixelz BV
878 .MUD - Textease Multi User Database N/A
879 .MUF - Alpha Five Access Control Format Alpha Software
880 .MUG - Hanes T-ShirtMaker Document Hanesbrands Inc.
881 .MUI - MultiLanguage Windows Resource Format Microsoft
882 .MUIMANIFEST - Microsoft Windows Multilingual User Interface Microsoft Corporation
883 .MUI_CCCD5AE0 - Hid User Library Microsoft
884 .MUL - Ultima Online Game Origin Systems
885 .MULIB - Adobe Muse Exported Library Adobe Systems Incorporated
886 .MULT - SAM Alignment Output Richard Hughey - Kevin Karplus - Anders Krogh
887 .MUM - Windows Vista Update Package Format Microsoft
888 .MUP - Music Publisher Data Format Braeburn Software
889 .MUS - Finale Music File Format MakeMusic
890 .MUS10 - Audio N/A
891 .MUSA - Aleph One Music Format Bungie Studios
892 .MUSE - Adobe Muse Project Format Adobe Systems
893 .MUSX - Min‐U‐Script Xpress Transcript Data Moretti & Murphy Reporting
894 .MUT - Integrative Genomics Viewer Mutations List Broad Institute
895 .MUX - TrackMania Music Format Ubisoft Entertainment
896 .MUZ - MUZ Audio Format Hover
897 .MV - IRIX Command Compressed Movie Format Silicon Graphics, Inc.
898 .MV1 - Video N/A
899 .MV4 - Apple QuickTime Video N/A
900 .MV85 - Adobe Director For Mac Movie Adobe Systems Incorporated
901 .MV93 - Adobe Director For Mac Movie Adobe Systems Incorporated
902 .MV95 - Adobe Director For Mac Movie Adobe Systems Incorporated
903 .MVA - Microsoft Setup Archive Microsoft Corporation
904 .MVB - Multimedia Viewer Book Format N/A
905 .MVC - Sony Digital Mavica Photo Image Format Miva Merchant
906 .MVD - Movie Edit Pro Video Format MAGIX
907 .MVDX - MindView MindMap Archive MatchWare A/S
908 .MVE - Interplay Video Format BioWare
909 .MVEX - Muvee AutoProducer Unicode Document Format muvee
910 .MVF - AutoFlix Stop Frame Autodesk, Inc.
911 .MVG - ImageMagick Proprietary Vector Graphics Format ImageMagick Studio LLC
912 .MVI - Autodesk AutoCAD Movie Command Format Autodesk
913 .MVL - Medison 3D Volume Data N/A
914 .MVM - MAGIX PhotoStory On DVD Slideshow MAGIX AG
915 .MVP - Movie Edit Pro Video Project Format MAGIX
916 .MVR - IBM HotMedia Multimedia Format IBM
917 .MVS - MusicMatch Jukebox Visualization Format Yahoo, Inc.
918 .MVT - Ultimate Wish Lists Template Sebenza
919 .MVV - AVS Media Player MPEG Video N/A
920 .MVW - Saber LAN Log McAfee, Inc.
921 .MVX - Multimedia Fusion Movement Extension Format Clickteam
922 .MVY - MAGIX Video Easy Project Format MAGIX
923 .MV_ - Magix Movie Edit Pro Movie Backup Format MAGIX
924 .MW - Maple Worksheet Format Maplesoft
925 .MW2 - MicroWorlds Logo Activity Logo Computer Systems Inc.
926 .MW2D - Apple MacWrite Apple, Inc.
927 .MW2S - MacWrite II Model Apple, Inc.
928 .MW4 - MechWarrior Game Structure File Archive Activision
929 .MWAND - Apple GarageBand MagicMentor Tepmplate Format Apple
930 .MWAV - Extended WAV N/A
931 .MWB - MySQL Workbench Database Models MySQL
932 .MWC - Make Project Creator Input Object Computing, Inc
933 .MWD - Mariner Write Document Format Mariner Software
934 .MWDP - CodeWarrior Debugger Freescale Semiconductor, Inc.
935 .MWE - OpenArchitectureWare Workflow Oracle Corporation
936 .MWF - MapGuide Format Autodesk
937 .MWI - Medlin Payroll Software Invoice Layout Information Medlin Accounting
938 .MWII - MacWrite II Text Document Apple, Inc.
939 .MWK - MusicWrite Music Score N/A
940 .MWLIC - MoneyWell License Information Format No Thirst Software
941 .MWP - Lotus Word Pro 97 Smartmaster Format IBM
942 .MWPD - MacWrite Pro Document Apple, Inc.
943 .MWPP - MacWrite Pro Document Apple, Inc.
944 .MWPR - MacWrite Pro Apple, Inc.
945 .MWS - Maple Spreadsheet Document Format Maplesoft
946 .MWT - MetaStock Stock Analysis Template Thomson Reuters
947 .MWX - Autodesk MapGuide Author Map Window XML Format Autodesk
948 .MX - Matlab Common Matrix Routines Format Wolfram Research
949 .MX1 - Coucoucircus.org Audio Temporary N/A
950 .MX2 - MasterCook Recipe ValuSoft
951 .MX3 - Mixcraft Project Format Acoustica
952 .MX4 - Mixcraft 4 Audio Format Acoustica
953 .MX5 - Mixcraft 5 Audio Format Acoustica
954 .MX5TEMPLATE - Mixcraft Audio Project Template Format Acoustica
955 .MX6 - Mixcraft 6 Audio Acoustica
956 .MXAD - Mandelbrot Explorer All Data Format J R Oakley
957 .MXADDON - Maxthon Addon Format Maxthon International
958 .MXC - ArcView Geocoding Index For Read-write Coverages Esri
959 .MXC2 - MAGIX Music Maker Cache MAGIX
960 .MXC3 - Magix Photo Manager Thumbnail Cache MAGIX AG
961 .MXCS - Mandelbrot Explorer Colour Scheme Format J R Oakley
962 .MXD - ArcGIS Map Document Format ESRI
963 .MXDIC - Maxthon Dictionary Format Maxthon International
964 .MXDL - Maxthon Incomplete Download Maxthon International Limited
965 .MXE - Corel Quattro Pro Startup Macro Format Corel Corporation
966 .MXF - Material Exchange Format SMPTE
967 .MXFD - ABBYY Form ABBYY
968 .MXFR - Mandelbrot Explorer Fractal Region Format J R Oakley
969 .MXG - Miinoto Exchangeable Group Format Mobiiko
970 .MXI - Adobe Dreamweaver Extension Manager Format Adobe
971 .MXIT - MXit Data N/A
972 .MXL - Compressed MusicXML Music Notation Format The MuseScore Team
973 .MXM - MixMeister BPM Calculation Format MixMeister, LLC.
974 .MXMF - Mobile XMF Format MIDI Manufacturers Association
975 .MXML - Adobe Flex Interface Component Format Adobe Systems
976 .MXN - Miinoto Exchangeable Note Format Mobiiko
977 .MXP - Adobe (Macromedia) Extension Package Format Adobe Systems
978 .MXPRJ - Maschine 2.0 Project Native Instruments, Inc.
979 .MXS - Maxwell Render Scene Definition Format Next Limit
980 .MXSD - IBM WebSphere Message Definition IBM
981 .MXSKIN - Maxthon Skin Format Maxthon International
982 .MXT - ArcGIS ArcMap Map Template Format ESRI
983 .MXV - MAGIX Movie Edit Pro Video Format MAGIX
984 .MXZ - Maximizer Data Maximizer Software Inc.
985 .MY3D - My3D Tools Exported N/A
986 .MYAPP - Microsoft Visual Studio Application XML Format Microsoft
987 .MYB - MYOB Data MYOB Limited
988 .MYCOLORS - Stardock MyColors Theme Format Stardock
989 .MYD - MySQL Database Data Format MySQL
990 .MYDOCS - Send To Format N/A
991 .MYE - MYOB MYOB Limited
992 .MYI - MySQL Database Index Format N/A
993 .MYL - MyLogo Maker Image Avanquest Software
994 .MYO - MYOB Data MYOB Limited
995 .MYOB - MYOB Data MYOB Limited
996 .MYOX - MYOB Data MYOB Limited
997 .MYP - Warhammer Online: Age Of Reckoning Electronic Arts, Inc.
998 .MYR - Myriad Music Format Myriad Software
999 .MYS - Vineyard Captured Video Format Vineyard Technologies
1000 .MYV - Vivaldi Studio Score goVivaldi Inc.
1001 .MZ - Mozart Compressed David Webber
1002 .MZ2 - Maze-solver MZ2 N/A
1003 .MZB - MegaZeux Board N/A
1004 .MZE - Maze Creator Gregory Peatfield
1005 .MZF - MediaZip Archive N/A
1006 .MZP - Autodesk 3D Studio Max MAXScript Zip Package Autodesk
1007 .MZT - MOZART Template David Webber
1008 .MZV - Viewpoint Media Player ZoomView Titles Enliven Marketing Technologies Corporation
1009 .MZZ - Microsoft .NET Framework Installation Package Format Microsoft
1010 .M_P - Pro/ENGINEER Temporary Parametric Technology Corporation