But he knows there are other files, He doesn't want the other files. He was asking for support on .gbs. Which you haven't helped on. He does not need a list of file formats that are compatible with ZC. He was saying that support for .gbs wasn't working, and asking for support. Not a list of file formats. You did not read his post clearly.
Also franpa, its "gray0x" not "GrayOx" ~