BUT - WARNING WARNING WARNING
DON'T download All2MP3 from the original source, because they "package it" along with crapware that will also install. Why they do this, I don't know.
Again, DO NOT download from here: https://tresrrr.com
The most versatile app for audio conversion is "XLD" . It reads & converts all sound file formats I know (some of them are unreadable by VLC).
It's free (donation accepted). Don't be frightened by the optional "console mode", as the app offers a spartan but clear & easy interface.
It's 64bits now: https://tmkk.undo.jp/xld/index_e.html