M4A files are MPEG-4 Audio files used to play audio. The M4A file uses the MPEG-4 container format, much like the MP4 file, but only contains audio, which is encoded with either the Advanced Audio Coding codec or the Apple Lossless Audio Codec. The ".m4a" extension was created because of the confusion between MPEG-4 video files and MPEG-4 audio-only files. The format has grown in popularity as the iTunes Store provides songs in the M4A format.
Open M4A files for free with File Viewer Lite
File Viewer Lite is a FREE program that can open MPEG-4 Audio .M4A files.
File Viewer Lite is a free .M4A file opener that allows you to play the audio contained in the file. In addition to the MPEG-4 Audio file, File Viewer Lite can open over 120 file types, including MPEG-4 Video files, Flash Video files, DVD Video Object files, Real Media files, images, and more. You can also view unsupported proprietary document formats in the program's Text and Hex Views. These views display the contents of the document, which can provide useful information.
To view your M4A files, download our free file viewer and drag and drop the .M4A file onto the program window. File Viewer Lite will open the file and display the document.