I have chopped a large block of audio into little pieces on garage band. is there a quick way to save each piece as a seperate wav file. If not, is there any other software that would do the job?

why not just use garageband to do it? delete all but one piece, save as, hit undo, delete all but the next piece, rinse, repeat.

I don’t have it in front of me, but I think you can split the track, copy&paste to separate GarageBand songs and share each whichever way you want.

Click on the section you want to export, choose share, your export destination, and check the box for ‘only export selection’. Repeat for each section.