Car Paints that i use :)

How can i use these ? in 3dsmax
go to the material editor (M) select an empty slot, click the "Get Material" button... in the new window look on the left side for "Mtl Library", click that and then click on "Open..."
Browse to where you unpacked the material and open it, double click the desired material and it should be loaded in to the empty slot that you selected