public ExcelComparerService(ISpreadsheetRepository repository, IExcelValidator validator)
 {
     _repository = repository;
     _validator  = validator;
 }
 /// <summary>
 ///     ctor()
 /// </summary>
 /// <param name="spreadsheetRepository"></param>
 /// <param name="excelValidator"></param>
 public ExcelWorkerService(ISpreadsheetRepository spreadsheetRepository, IExcelValidator excelValidator)
 {
     _spreadsheetRepository = spreadsheetRepository;
     _excelValidator        = excelValidator;
 }