It is suggested to download "Thousand Listeners", open the music file to be converted into format, right-click the song to be converted into MP3 format in the playlist, and "Convert Format". In the Convert Format dialog box that opens, select the encoding format and save location, and then convert now. It's easy, supports various formats, automatically downloads lyrics online, has too many functions, and is free. You'll know when you use it. Highly recommended.