MMF file format description

Many people share .mmf files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .mmf file can be edited, converted or printed with. On this page, we try to provide assistance for handling .mmf files.

2 filename extension(s) found in our database.

.mmf - SMAF Audio

The MMF audio files are related to SMF-Multi Authoring Tool. MMF file is a SMAF Audio. SMAF is a multimedia data format invented by Yamaha. The SMAF specification defines a format for multimedia files which can be played back on hand-held portable devices. The SMF-Multi Authoring Tool seems to be no longer supported.

Application:

SMF-Multi Authoring Tool

Category:

Audio files

Mime-type:

application/x-smaf

Magic:

- / -

Aliases:

smaf

SMAF Audio related extensions:

.shn: Shorten Compressed Audio
.vb: Sony Playstation Wave Bank Body
.vh: Sony Playstation Wave Bank Header
.gym: Sega MegaDrive Music
.vag: Sony Playstation Compressed Audio
.2sflib: Nintendo DS Audio Library

.mmf - Microsoft Mail Message Format Data

The MMF data files are related to Microsoft Mail. MMF file is a Microsoft Mail Message Format Data. Microsoft Mail is an electronic messaging system developed by Microsoft.

Application:

Microsoft Mail

Category:

Data files

Mime-type:

application/octet-stream

Magic:

- / -

Aliases:

Microsoft Mail Message Format Data related extensions:

.xab: Microsoft Mail Addressbook Data
.nmmm: Samsung Note Data
.je: SAP Fiori Journal Entry Data
.qdi: Quanquest Data Mapping Data
.ptf: Quanquest Project Translation Data
.dstl: Adobe Acrobat Distiller Data

Naturally, other applications may also use the .mmf file extension. Even harmful programs can create .mmf files. Be especially cautious with .mmf files coming from an unknown source!

Can't open a .mmf file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:

example.mmf

To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

Open Control Panel > Control Panel Home > Default Programs > Set Associations.
Select a file type in the list and click Change Program.

The .mmf file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

hmf, jmf, kmf, lmf, mf, mfm, mjf, mkf, mlf, mm, mmb, mmc, mmd, mme, mmg

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

.hmf: HOOPS Metafile
.mmv: Sony MicroMV Video
.mlf: Package Download Profile
.mf: Java Manifest File
.mmd: mAirList Metadata
.mme: MIME Encoded Data

Operating systems

DataTypes.net currently supports the following operating systems:

Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android

If you find the information on this page useful, please feel free to link to this page.

https://datatypes.net/open-mmf-files

If you have useful information about the .mmf file format, then write to us!

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