Home » Video Files, M » MMM

Basic information about MMM file

When there is a problem with opening files with the file extension MMM（*.MMM or *.mmm）, you do not need a computer expert. In most cases, using the helpful suggestions of experts contained in our website as well as appropriate programs, you can solve the problem with the MMM file yourself.

There are 5 file types using the MMM file extension in our database. In the further part of this page, you will find detail information about all the MMM file with their brief description and a list of programs that support MMM file sorted by operating systems. The table below provides useful information about the MMM file extension. It answers questions such as:
  • What is the MMM file?
  • How to open a MMM file?
  • What programs do I need to open a MMM file?
  • What programs help to create and edit a MMM file?
  • How to convert MMM files to another file format?
  • How to convert another files to MMM file format?


1.Detail information about MMM file extension: MultiMedia Movie Format (RIFF RMMP)

File type MultiMedia Movie Format (RIFF RMMP) Category Video Files
Developer N/A File format N/A
Description MMM file is a MultiMedia Movie Format (RIFF RMMP). File extension mmm is also related to the MultiMedia Movie format. It was introduced in 1991 by Microsoft and IBM, and was presented by Microsoft as the default format for Windows 3.1 multimedia files.

It is based on Electronic Arts's Interchange File Format, introduced in 1985, the only difference being that multi-byte integers are in little-endian format, native to the 80x86 processor series used in IBM PCs, rather than the big-endian format native to the 68k processor series used in Amiga and Apple Macintosh computers, where IFF files were heavily used.

The MultiMedia Movie format was also used by MacroMind Director (Adobe Director).

This mmm file type entry was marked as obsolete and no longer supported file format.

This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.
Software programs that will open, edit or convert MMM files

Windows		 Adobe Director
Microsoft Windows 3.x
Adobe Director

macOS		 Adobe Director for Mac


2.Detail information about MMM file extension: Music Maker Arrangement File

File type Music Maker Arrangement File Category Audio Files
Developer MAGIX AG File format Binary
Description MMM file is a Music Maker Arrangement File developed by MAGIX AG.
Software programs that will open, edit or convert MMM files

Windows		 MAGIX Music Maker 2017


3.Detail information about MMM file extension: Multiple Master Metric Data File

File type Multiple Master Metric Data File Category Data Files
Developer N/A File format Binary
Description MMM file is a Multiple Master Metric Data File.
Software programs that will open, edit or convert MMM files

Windows		 Microsoft Windows Font Viewer


4.Detail information about MMM file extension: Money Manager File

File type Money Manager File Category Data Files
Developer Moneysoft File format Text
Description MMM file is a Money Manager File developed by Moneysoft.
Software programs that will open, edit or convert MMM files

Windows		 Moneysoft Money Manager


5.Detail information about MMM file extension: MiraMon Maps File

File type MiraMon Maps File Category GIS Files
Developer CREAF and UAB File format Text and Binary
Description MMM file is a MiraMon Maps File developed by CREAF and UAB.
Software programs that will open, edit or convert MMM files

Windows		 MiraMon
MiraMon Universal Map Reader



Can't open a MMM file?

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

”Can't open this file: example.MMM”。

To open this file, you install one of the applications from the list of software programs that you found here, you should be able to open, edit or convert the file with the MMM extension without any issue.


Where I can download the application that support MMM file?

If you do not know where you can download the application from our list, click on the link (which is the name of the program), you will find more information there on the location where to download the required application. Most often they are the websites of software manufacturers.


How to change file associations?

  • Right-click a file with the extension whose association you want to change, and then click "Open With".
  • In the "Open With" dialog box, click the program whith which you want the file to open, or click "Browse" to locate the program that you want.
  • Select the ”Always use the selected program to open this kind of file” check box.


Can I change the extension of MMM files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read/open the file. The problem is, changing the file extension does not change the file format. Select a software program from our list and install it on your computer. If the file has not opened correctly, you have to look for a different software program from our list. Sometimes you have to repeat the operation several times.


What else may cause problems width open a MMM file?

The reasons for the lack of the ability to open a MMM file on your computer may be at least several. The easiest thing is to find a suitable application installed on your computer, which will open a MMM file. If there is still something wrong, you might want to check:

  • Whether the MMM file is damaged.
  • Whether the MMM file is incorrectly linked in the registry entries.
  • Whether the MMM file extension has been accidentally removed from the Windows registry.
  • Whether the installation of an application that supports the MMM file format is incompletely.
  • Whether the MMM file is infected.
  • Whether the drivers of the equipment used for opening a MMM file are up to date.
  • Whether your computer has enough hardware resources to open a MMM file.

If the MMM file still not working with your software after eliminating the above shortcomings? That means that the problem is more complex and requires the help of a specialist.