first go on blance sheet display then do export from that page then a page come exporting page choose format asccii command then save it by giving name(balance sheet)the page save where ur tally is installed
second step then open excel sheet and open the file which one u saved select the folder of tally and whn u fnd the file choose fily of typeee..... all files*then that file comes and open that file
third then text import wizard comes then do next select delimetre and then do next u will export it