Hi Mudit, I believe that this was asked recently. If you can put the information into Artemis then there is an easy way to write it out. Artemis will read a cif file. Then go to Theory->write special output -> p1 HTH Shelly Kelly -----Original Message----- From: ifeffit-bounces@millenia.cars.aps.anl.gov on behalf of Mudit Dixit Sent: Thu 7/30/2009 2:36 AM To: ifeffit@millenia.cars.aps.anl.gov Subject: [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