Audacity lets you edit M4A files. It is a dedicated audio editor using which you can open your M4A files in Audacity and edit them. But, you must install FFmpeg libraries to open and edit M4A ...
Lifewire on MSN3mon
What Is an MP4 File? (and How to Open or Convert One)Files like this that only have audio are sometimes saved with the .M4A extension ... your computer decide which default ...
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