hmm...i think the .rex, .aiff and .wav files just need to be loaded into their player, then saved in a different location. if that doesn't work, just load the sounds alone and then export it as audio. that seems really cumbersome now that i think of it...maybe there is a function of propellerheads' refill packer that allows you to "depack" the refill? i don't know...

...good luck!