modify excel using JXL android -


in app want read excel sheet sd-card , update or modify it. using jxl library.i have read excel sheet issues how modify particular sheet. tried researching in vein.

code read excel

    workbook workbook = workbook.getworkbook(new file(filepath));      int noofsheets = workbook.getnumberofsheets();      cell cell1 = workbook.getsheet(10).getcell(0, 1); 

how modify particular cell.