I am trying to update the existing excel sheet using java. Means need to check the no of rows in the existing sheet, if it is 10 i need add the data into 11th row. Please suggest me any link or code to solve this problem. I can able to insert the any number of rows in one short but if i try to update the existing one.. i could not(no exception it is throwing at the same time no data getting added newly). Thanks in advance.