Hi, I am using Agi4x44PreProcess for preprocessing my agilent microarray data. I have extracted data using Feature Extraction v10.5. So, Agi4x44PreProcess is unable to read my raw data, But in Help Pdf it has been written there that we can use it for FE 9.5 and later on versions of FE. Please Help me Thanks, Sikha See the Web's breaking stories, chosen by people like you. Check out Yahoo! Buzz. http://in.buzz.yahoo.com/ [[alternative HTML version deleted]]