File Extension Library


.MM4 File Extension

  • Developer by: Microsoft Corporation
  • Category: Various data Files

What are .MM4 files and how to open them?

Can't open .MM4 file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .MM4 file.

What is a .MM4 file extension?

.MM4 file extension is created by Microsoft Corporation. .MM4 has been classified as Various data Files.

.MM4 is Microsoft Windows word processing format

The MM4 file extension is associated with the Microsoft Windows operating system for IBM-PC compatible computers and other platfrorms like ARM. The .mm4 file stores word processing format used by older versions of Windows system.


How to open:

This file type is not meant to be opened directly, there is no software that could open and work with it directly, or there is no information available in public sources about opening this file type. This is usually the case of some internal data files, caches, temporary files etc.

How to convert:

As far as we know, this .mm4 file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

How to fix problems with .MM4 files

  1. You need to update the application that you normally use to open .MM4 files. Only the latest version of the software supports the current .MM4 file format
  2. You need to check the .MM4 file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)