public static void main(String[] args) throws Exception {
    // The path to the documents directory.
    String dataDir = Utils.getDataDir(ApacheHideUnHideCells.class);

    InputStream inStream = new FileInputStream(dataDir + "workbook.xls");
    Workbook workbook = WorkbookFactory.create(inStream);
    Sheet sheet = workbook.createSheet();
    Row row = sheet.createRow(0);
    row.setZeroHeight(true);

    FileOutputStream fileOut = new FileOutputStream(dataDir + "ApacheHideUnhideCells.xls");
    workbook.write(fileOut);
    fileOut.close();

    System.out.println("Process Completed.");
  }