Graphic quality

[cenovita]

ok, i found this 3 files in the fifa "cmn" folder:
pc_l.ini, pc_m.ini, pc_h.ini or something like that.....
this are the graphics configs of the game??????
or are just models to be used in some other file?
if that the case, whic file must be edited to improve the graphics or to add/remove stuff

thanks