M4A File Extension

M4A file icon

MPEG-4 Audio Format

What is a M4A file?

MPEG-4 Audio Format, identified by the M4A extension, is a Audio Files type and includes 667 files.

The MPEG-4 Audio Format (M4A) was developed by Apple, which created file format and 72 programs to work with them.

M4A files are compatible with various operating systems, including Windows, Mac OS and Linux as well as mobile platforms such as Android and Apple iOS. To play a M4A file, you can choose from 45 programs such as Apple iTunes, iTunes and Adobe Premiere Pro.

File Signature

HEX code: 00 00 00 20 66 74 79 70 4D 34 41 20 00 00 00 00 4D. ASCII code: ... ftypM4A ....M4A mp42isom.

How to open a M4A file?

If you cannot open a M4A file, it is most often due to missing software. Select a program from the list according to your operating system. Then go to the official website of the program developer, download it, and install it on your device.

Apple iTunes, iTunes and Adobe Premiere Pro are recognized as the most popular software solutions for dealing with M4A files. To set up the newest version of MediaMonkey on your device, simply go to the official Ventis Media website. There you can download the edition compatible with every operating system.

Once setup is done, your operating system should assign MediaMonkey as the default app for M4A files.

Set MediaMonkey as the default M4A handler

Setting a default program by file type in Windows

  1. Right click on your M4A file, then select "Open with" and click "Choose another application";
  2. In the pop-up window, find and select the MediaMonkey application from the available options;
  3. Make sure the "Always use this app" checkbox is checked and click "OK" to confirm your choice as the default app for opening M4A files.

Choose an app to open a file on Mac

  1. Right click or use Control + left click on the desired M4A file to launch the file options menu;
  2. Select "Open in application" and click "Other";
  3. Scroll down to the bottom of the window, where you will find the "Enable" menu. Default, "Recommended Programs" will be selected;
  4. In this menu, choose "All Programs" and navigate to MediaMonkey. Check the box next to "Always open in app" to make it the default program.

How to edit a M4A file?

Editing M4A files requires installing professional software that lets you open and edit audio files. Online editors have more limitations compared to dedicated MPEG-4 Audio Format programs.

List of Top M4A editors 2026

Following these criteria, we have put together a list of recommended M4A editors.

M4A Editor SoftwareDeveloperPlatformsOverall Rating
CompressorAppleMac OS4.5 out of 5 (38 reviews)
Nero SoundTraxNeroWindows4.5 out of 5 (39 reviews)
Awave StudioFMJ-SoftwareWindows4.4 out of 5 (38 reviews)
Ringtone MakerMobile17Apple iOS4.3 out of 5 (39 reviews)
Adobe Premiere ProAdobeWindows, Mac OS4.2 out of 5 (40 reviews)

Convert to and from M4A

If you struggle with a M4A file, consider converting it to alternative formats such as MOV, WAV, MP3, WMV, WMA or other similar file types.

Converting a M4A file may not fully retain all functionality, but it is generally possible to return it to the original format.

iTunes, Apple iTunes and Wondershare Video Converter are offline tools that convert M4A files to other formats seamlessly and without quality loss.

Convert M4A to other file formats

Converting Files to M4A Format

Effective solutions for M4A file problems

If you encounter issues with M4A files, don’t worry—most can be fixed with minor software adjustments. Refer to the troubleshooting tips below.

What are the steps to repair a damaged M4A file?

Open the corrupted M4A file in a recovery program and select the "Repair" menu item. Wait for the recovery process to finish, as it will automatically repair damaged audio files.

How do I know if my M4A file is corrupted?

Corrupted M4A audio files may show the following signs:

  • The file shows errors when trying to open it or does not open completely;
  • Editing the archive in Adobe Premiere Pro is accompanied by slow performance or delays;
  • Opening or processing the file in MediaMonkey or other programs causes instability or crashes in the program;
  • Unexpected expansion of the total size of the M4A file;
  • Error messages appear while working with the file;

What are the reasons behind MediaMonkey crash?

The likely cause of MediaMonkey crashing is lack of software updates. Install the latest updates available for Ventis Media products.

Restarting your computer can resolve numerous common problems, so it should be the initial step before changing any software-related settings.