[Ifeffit] conventional unit cell to primitive cell

Dear sir , If you have found any way convert conventional unit cell to primitive cell please tell me I am also looking for it. I have material studio if you know how to do it material studio please tell me. -- With Best Regards, Mudit Dixit JRF c/o Dr. Saurav Pal Physical Chemistry Division, Center For Excellence in Advance Computing PUNE ,INDIA