The files on this page are out-of-copyright: there are no restrictions to use
To listen to a soundfile: Click on the file (e.g. MP3) next to your voice partname.
To download a soundfile: Right-Click (Ctrl-Click) on the file (e.g. MP3) next to your voice partname; then choose "Download As..." (or "Save As...") and pick a location on your hard drive
If you are not offered a "Download As..." option, Click on the file as if you were going to play it, and at the right-hand end of the transport bar you will find a download icon.
Choose HELP>HOW TO PLAY THE FILES for more details.