1. Just login on the GST portal www.gst.gov.in 2. After go to downloads > offline tools > GSTR-11 offline tool button and click 3. After then Unzip the downloaded Zip file which contain GSTR_11_Offline_Utility.zip excel sheet 4. Then after,Open the GSTR_11_Offline_Utility.xls excel sheet by double clicking. 5. Then in last,read the ‘Read Me’ instructions on excel sheet.