Writing a row to excel file

Question

I am trying to write a row to an existing excel file using apache POI and JExcelAPI but no luck so far. It somehow just corrupts the file and am unable to open it. Here is the code im using for POI but it gives me NullPointerException at cell.setValue(). If anybody else knows any other API which is easy to use and does it without any problems
thx
try {
          String filename = "C:/m/util.xls";
          POIFSFileSystem fs  = new POIFSFileSystem(new FileInputStream(filename));
          HSSFWorkbook wb = new HSSFWorkbook(fs);
          HSSFSheet sheet = wb.getSheetAt((short)1);
          int i = 17;
          HSSFRow row = sheet.getRow(i);
          HSSFCell cell = row.getCell((short) 2);
          cell.setCellValue("test!");
          FileOutputStream fileOut = new FileOutputStream(filename);
          fileOut = new FileOutputStream(filename);
         wb.write(fileOut);
         fileOut.close();
          }catch(Exception e) { e.printStackTrace(); }Edited by: djavia on Oct 31, 2007 6:47 AM

Answer 1

Don't double post your question:
http://forum.java.sun.com/thread.jspa?threadID=617605&messageID=3450899#3450899
/Kaj