Help plz eror when importing any vismat i downloaded

[wanas]

heyyyyy guys , i am sry to bother u all but i have this problem , i have downloaded alot of vismat s( vray materials ) even from the official vray site http://www.asgvis.com and whenever i import them into sketchup this error comes up saying : invalid asgvis material file . and i really need them for my work , plz any help thx .