I am trying to help you. I told you that all Grandstreams do accept the file type we present. You didn't seem to like that answer.
I told you that our support staff doesn't work weekends. You didn't like that answer. (Note that if you have an after hours support contract they do but different story)
It certainly seems you just don't like my answers as I provided detail into the file the program generates. What it is and that it's a valid file. Also that the file works for many other people.