I am trying to write a program that will append data to an Excel file in Java. I got up to the following code. But it rewrites the contents in the Excel file, not appending
After opening the workbook from file, do like this:
workbook
WritableWorkbook copy = Workbook.createWorkbook( new File(""D:\\0077\\my2_copy.xls""), workbook );
You will get a copy of the workbook opened. Do the changes you need in that copy and save it instead.