How to Export an Audacity File As an MP3 in 2 Simple Ways
Importing Audio - Audacity Manual
Audacity tutorial: Converting to mp3 or AAC and other formats, example: Matthew Smith - epic orchestral synth music for film and game effects; Buanzo's LAME mp3 library
Audacity audio editor updated to v2.3.2, now comes with LAME mp3 encoder
Audacity Tutorial How to Save a WAV or MP3 File | Export Sound Format Tutorial - YouTube
How to Install the LAME MP3 Encoder for Audacity | geekyprojects.com