I have a licensed version of Envi 4.8 ...But i haven't familier with Envi IDL code...Its completely new to me...So please help me to Understand it...Suggest me any useful guide... This is how it is opening in Available Band List 20101110_slot06_L1A.pxl Warp(Band 1:GOCI_1A_2010-11-10.01-16-43_6.pxl.corr) Warp(Band 2:GOCI_1A_2010-11-10.01-16-43_6.pxl.corr) Warp(Band 3:GOCI_1A_2010-11-10.01-16-43_6.pxl.corr) Warp(Band 4:GOCI_1A_2010-11-10.01-16-43_6.pxl.corr) Warp(Band 5:GOCI_1A_2010-11-10.01-16-43_6.pxl.corr) Warp(Band 6:GOCI_1A_2010-11-10.01-16-43_6.pxl.corr) Warp(Band 7:GOCI_1A_2010-11-10.01-16-43_6.pxl.corr) Warp(Band 8:GOCI_1A_2010-11-10.01-16-43_6.pxl.corr) How to use ENVI batch routine...I saw some of IDL codes...But i dont know how to give this file as input to that IDL code...Please give me some example to give input image file in IDL code and then where i have to insert this file, whether i have to give the complete path... I have given variable name to saved the data in the file from ENVI to IDL by choosing File > Export to IDL Variable from the main ENVI menu..But i dont know where it is saved... I want to write some algorithm to process this image file in IDL...Please help me to go further... Thanks & Regards Suresh M