File Type MPEG-4 Audio File IconMPEG-4 Audio File
File Format Standard (developed by Apple)
Usage Referenced by an application; not meant to be opened manually; may run a program or script when opened
Popularity ★ ★ ★ ★ ★  Popular

An M4A file is an audio file saved in the MPEG-4 container format. It may be compressed with either the Apple Lossless Encoder (ALE) or Advanced Audio Coding (AAC). The M4A format support 16 and 24 bit, multi channel audio, as well as ID tagging.

Important: AAC compression is lossy, meaning some quality is lost in the compressed file. The Apple Lossless Audio Codec (ALAC) provides lossless compression, which means no quality is lost in the file compression process.

Open With

IconMicrosoft Groove Music

IconMicrosoft Windows Media Player

IconAdobe Audition


IconApple Music

IconApple QuickTime Player

IconApple GarageBand


IconVideoLAN VLC media player

Updated July 8, 2011
Information from the PC File Extensions Reference