Trouble Playing .voc files on mac laptop?

So my cousin came to visit us this week, and he has a mac laptop. While with us, he bought a voice recorder from radioshack (i can't seem to find the product number). So the device makes .voc files, and the software that came with it only works with windows. So on the back of the device, it says to drag the files onto a mac in order to play them. But when he does this, quicktime doesnt recognize .voc files and wont play them. So i had him install VLC on his mac to see if VLC could play .voc files, but it cant either. Is there any player that can play .voc files on a mac? If not, is there a converter that could change .voc files into something a mac could use like an .mp3? Thanks in advance