File Extension M4A

  • Full name
    MPEG-4 Compressed Audio Format
  • Developer
  • Popularity
Have you encountered a problem with a M4A file? Don’t you know which program opens a file with this extension? You will find all the information you need about working with a M4A file here. In the further part of this page we have added a list of programs that should open your M4A file. It is enough you choose a proper application for your operating system, download and install it.


M4A refers to mp4 files that contain only audio data.

iTunes and Apple's iPod have made this format popular. Your M4A files are encoded exclusively in either the lossy AAC or the lossless Apple Lossless.

In general, M4A files can also contain audio data encoded with other compression methods. However, this is rare.

The contents of the file may also be protected by DRM (Digital Rights Management). Then you need a corresponding, possibly paid license to view the content.

Most audio players can play this format.

MP3 and MP4 hardware player only in exceptional cases.

Programs which can open a M4A file

How to open a M4A file? Advice and guidance

Absolutely most often appearing reason that prevents you from opening the M4A file is the lack of a proper application to support it in your operating system. It is notably the first thing you need to address. When one of the programs to support a M4A file from the list is already installed, you can try to rerun the file. The system should display a message asking you to choose a primary application to support M4A files. At this point we are looking for disk space where the application was installed in and we can link it with a M4A file. Since then, our operating system will use the selected program to support all M4A files.

Other issues

Despite the described problem with M4A there may be many more problems. If the existing operations were not effective, get involved with the following matters:

- verify that the M4A file is not damaged and that it has been downloaded or copied in whole
- verify that the file has a file extension that has not been intentionally changed (for example, if it do not contain other information than its extension suggests)
- make sure again whether the M4A file type is linked in the operating system with a proper program
- make sure that the file is not infected with a virus and you have up to date software and drivers.

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