It really depends on which you are talking about.
You stated that
Originally Posted by bpf83
i didn't d/l any emulators yet
so it probably depends more on which games you are talking about.
What games are you referring to - then maybe someone can help.
(might help if you post the game name and the extension to the file - that's the last three characters, after the '.' e.g. '.txt' '.rom' '.smc' etc)