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M: File Extension M - Open M files - M file type info
Files that contain the .m file extension are normally class implementation files. These files are used by soft ...

M2TS: File Extension M2TS - Open M2TS files - M2TS file type info
The .m2ts file extension is used to store BDAV MPEG-2 files that can be streamed from Blu-Ray discs in order t ...

M3U: File Extension M3U - Open M3U files - M3U file type info
M3U stands for MP3 URL. Files that contain the .m3u file extension are MP3 playlist files, also commonly refer ...

M3U8: File Extension M3U8 - Open M3U8 files - M3U8 file type info
Files with the .m3u8 file extension contain MP3 playlist files. These files are used by a variety of media app ...

M4A: File Extension M4A - Open M4A files - M4A file type info
Files with a .m4a extension are container files that store audio data. The audio data that is contained in the ...

M4B: File Extension M4B - Open M4B files - M4B file type info
Files that contain the .m4b file extension are used to store audio books that are downloaded from the Apple iT ...

M4P: File Extension M4P - Open M4P files - M4P file type info
Files that contain the .m4p file extension are audio files that have been downloaded from the iTunes Music Sto ...

M4R: File Extension M4R - Open M4R files - M4R file type info
Files that contain the .m4r file extension hold custom ringtones that have been created for the iPhone mobile ...

M4V: File Extension M4V - Open M4V files - M4V file type info
Files with the .m4v file extension are MPEG-4 files. These files contain digital videos that are downloaded fr ...

MAL: File Extension MAL - Open MAL files - MAL file type info
Files that contain the .mal file extension are most commonly associated with the Connect Server. The MAL files ...

MAN: File Extension MAN - Open MAN files - MAN file type info
Files that contain the .man file extension are most commonly associated with the Unix Man utility program. Uni ...

MANIFEST: File Extension MANIFEST - Open MANIFEST files - MANIFEST file type info
Files with the .manifest extension are used to update older Windows programs. These files enable the associate ...

MAP: File Extension MAP - Open MAP files - MAP file type info
The .map file extension is used by computer games that have been created with one of the Quake engines. These ...

MAX: File Extension MAX - Open MAX files - MAX file type info
Files that contain the .max file extension normally contain three-dimensional scenes that have been created by ...

MB: File Extension MB - Open MB files - MB file type info
Files that contain the .mb file extension are most commonly associated with the MapBasic development environme ...

MBB: File Extension MBB - Open MBB files - MBB file type info
Files that contain the .mbb file extension are files that contain MannaBook documents. MannaBook is a classifi ...

MBM: File Extension MBM - Open MBM files - MBM file type info
The .mbm file extension is most commonly associated with bitmap images files. The MBM file format allows a use ...

MCF: File Extension MCF - Open MCF files - MCF file type info
The .mcf file extension is most commonly used by the MasterCook recipe software programs. Versions 2, 3 and 4 ...

MCT: File Extension MCT - Open MCT files - MCT file type info
The .mct file extension is most commonly associated with the Windows Live Messenger application. The MCT files ...

MD: File Extension MD - Open MD files - MD file type info
Files that contain the .md file extension are primarily associated with the Chaos Desktop software application ...

MD5: File Extension MD5 - Open MD5 files - MD5 file type info
Files that contain the .md5 file extension are checksum files that are used to ensure that the data within a f ...

MDB: File Extension MDB - Open MDB files - MDB file type info
MDB stands for Microsoft Database. Files that contain the .mdb file extension are created by the Microsoft Acc ...

MDF: File Extension MDF - Open MDF files - MDF file type info
Files given the .mdf extension contain a disc image of the information that has been saved on a CD or DVD. MDF ...

MDI: File Extension MDI - Open MDI files - MDI file type info
Files that contain the .mdi file extension are image files that are created by the Microsoft Office Document I ...

MDMP: File Extension MDMP - Open MDMP files - MDMP file type info
Files that contain the .mdmp file extension are used to store information that has been dumped by an applicati ...

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