The framework-res.apk is a system file in the Android operating system on your phone. It contains an audio file (fallbackringtone.ogg) that if for any reason, your selected ringtone is deleted before you actually select a new one, the phone will use this audio file as your default ringtone.
Edit: Windows can't play .ogg files by default. So if you want to listen to that file, which I attached in my last post. You'll have to install a player that can.