removing file types

cc cleaner claims you can add certain file extensions to be automatically cleaned by the program, but i can find no screen in which to program such a request

a) are .sqm files found in my root directory safe to delet

B) assuming so, how do i set cc cleaner to delete all .sqm files

thanks in advance

Welcome rroberto18

a) are .sqm files found in my root directory safe to delet

They are from Windows Live Messenger and can occur in several places and are performance tracking files I believe.