This article describes what MP3 files are, how to best open them, and how to convert them to M4A, WAV, and other formats.
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A file with the file extension MP3 is an MP3 Audio file developed by the Moving Pictures Experts Group (MPEG). The abbreviation stands for MPEG-1 or MPEG-2 Audio Layer III.
An MP3 file is normally used to store music data, but there are also many free audiobooks that are available in this format. Due to its popularity, several phones, tablets, and even vehicles offer built-in support for playing MP3s.
What makes MP3 files different from other audio file formats is that their data is compressed to reduce the file size to a fraction of what formats like WAV use. This technically means that the sound quality is reduced to achieve such a small size, but the trade-off is generally acceptable, which is why the format is so widely used.