*/
private XSSFName createBuiltInName(String builtInName, int sheetNumber) {
validateSheetIndex(sheetNumber);
CTDefinedNames names = workbook.getDefinedNames() == null ? workbook.addNewDefinedNames() : workbook.getDefinedNames();
CTDefinedName nameRecord = names.addNewDefinedName();
nameRecord.setName(builtInName);
nameRecord.setLocalSheetId(sheetNumber);
XSSFName name = new XSSFName(nameRecord, this);
for (XSSFName nr : namedRanges) {
if (nr.equals(name))
throw new POIXMLException("Builtin (" + builtInName