Audacity and MP3Created: 16.11.2018 | Updated: 16.11.2018
Adding MP3 to Audacity
Even so this is pretty easy and straightforward it costed me quite some time to figure it out.
It simply checking the instrations at Audacity at:
Which is basically pointing you to the download site:
Just download the Windows .exe file and install it. Now it should simply work to save audio files as MP3.