private void parseLength(Configuration configuration, Sheet sheet, int startRow, Attribute attr) {
   String value = ParserUtils.getCellValue(sheet, startRow, configuration.getLengthCol());
   if (StringUtils.isNotEmpty(value)) {
     if (ParserUtils.isDouble(value)) {
       value = String.valueOf((int) Double.parseDouble(value));
     }
     attr.setLength(value);
   }
 }