hi it is time to clean up one time for all i try a export only subscribers there has open in the last 4 years "big db" and put it in a new install setup but the "Segments" do not has it and if i use "Subscribers from all your lists" say "Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit." it is a limit in the explore and cant be fix. so how can i make a export i have look if the cli has it but it only has "Segments" but i cant make a Segments on opens so i am much lost here i can filter so big data out can there be make a hack in the Segments so i can make filter on opens. plz help.