Audacity is the only program I know of that can read .AUP and .AUP3 files. To convert these files to a different format, simply load the project into Audacity and File > Export into whatever format you please.
Audacity is the only program I know of that can read .AUP and .AUP3 files. To convert these files to a different format, simply load the project into Audacity and File > Export into whatever format you please.