/** bug 49725, defined names with underscore */
public void testNamesWithUnderscore() {
HSSFWorkbook wb = new HSSFWorkbook(); //or new XSSFWorkbook();
HSSFSheet sheet = wb.createSheet("NamesWithUnderscore");
HSSFName nm;
nm = wb.createName();
nm.setNameName("DA6_LEO_WBS_Number");
nm.setRefersToFormula("33");
nm = wb.createName();
nm.setNameName("DA6_LEO_WBS_Name");
nm.setRefersToFormula("33");
nm = wb.createName();
nm.setNameName("A1_");
nm.setRefersToFormula("22");
nm = wb.createName();
nm.setNameName("_A1");
nm.setRefersToFormula("11");
nm = wb.createName();
nm.setNameName("A_1");
nm.setRefersToFormula("44");
nm = wb.createName();
nm.setNameName("A_1_");
nm.setRefersToFormula("44");
HSSFRow row = sheet.createRow(0);
HSSFCell cell = row.createCell(0);
cell.setCellFormula("DA6_LEO_WBS_Number*2");