File type problems
 

I recently got a cable modem and started downloading a lot of music. for the first few songs it worked great. after a couple of hours i deleted my old internet files and now whenever i download an mp3 it wont show up with my mp3 player icon. and i cant open it at all.

i think i may have deleted something i shouldnt have ^^;

HELP!!!
 

if anyone knows what might have happened please tell me