public void testExponentialInSheet() throws Exception {
HSSFWorkbook wb = new HSSFWorkbook();
wb.createSheet("Cash_Flow");;
HSSFSheet sheet = wb.createSheet("Test");
HSSFRow row = sheet.createRow(0);
HSSFCell cell = row.createCell((short)0);
String formula = null;
cell.setCellFormula("1.3E21/3");