Download ITR-1 (Group) Spreadsheet   Download ITR-1 (Group) Spreadsheet Always download and read the instructions before you populate your data into the spreadsheet.   Instruction for ITR-1 (Group) Spreadsheet ( 2009 - 10 ) ITR-1 (Group) Spreadsheet document ( 2009- 10 )   Once downloaded, you should enter your data into the Spreadsheet and save it in a CSV format. Then select Upload CSV Data from the Tasking Zone to save the spreadsheet back to our server in a CSV format ready for eFiling