I can see 2 options:
Option A (preferred):
It would be nice to be able to use a CSV + ZIP to upload announcement files. If you have hundreds of announcement files, it's tedious to have to select them one by one an assign them a location and name.
A CSV with 3 columns (location, name, and WAV file name) would allow us to present a ZIP full of WAV files whose names are referenced in the CSV to attach each one to a location and provide a name for it in WxC.
Let us select all the individual files and upload them as a group (or allow a single ZIP). Then list them out on the screen with a location drop-down and empty name field next to each. Then we could input all that info on a single screen instead of having to go through a short wizard for every single WAV file one at a time.