importing wav files

I am running Audacity on MacOS High Sierra, version 10.13.6. I’m recording an audio book on Voice Record Pro and then importing the chapter files into GarageBand on my Mac. Will Audacity accept WAV files or do I need to save as MP3’s and convert back to WAV once they’re modified in Audacity?

Audacity can import “normal” WAV files.

The full name for a “normal” WAV file is: “WAV (Microsoft) PCM”. Some oddball variants of the WAV format do exist, which may or may not be compatible with Audacity - it depends what they are.