The UW-Madison has implemented a utility for exporting your files out of your UW Google Drive account (as well as YouTube and Google Contacts) in one step. This is useful for archiving files in your account if you are leaving the University or if you want a copy of the files to place in another location. Takeout doesn’t delete the files; it creates a copy, so if you need to delete them, you will need to do that directly in Google Drive.
See Exporting Data Using Google Takeout for instructions on how to do this.
Google Takeout creates a zipped folder, named <yourNetID>@wisc.edu-takeout.zip which you can download from the browser.