Hi all, I am using normal writing method in 'XSSF' to change cell's content, and save as a new file. The cell(eg:A1) that I change, which is linked by other cells(eg:B1,C2,or =Sheet1!A1 etc.) After run the writing-content code without any error, then open the new-saved file. The content of other cells are not updated but the one I change. Thanks Oscar
Formula values are cached, so you must update that by doing an evaluation when you're done, see http://poi.apache.org/spreadsheet/eval.html
Thanks for the solution.