/// <summary>
 /// Zapisywanie danych do pliku excela
 /// </summary>
 private void SaveExcel()
 {
     string filePath = string.Empty;
     SaveFileDialog saveFileDialog = new SaveFileDialog();
     saveFileDialog.Filter = "Excel files (*.xls;*.xlsx)|*.xls;*.xlsx";
     if (saveFileDialog.ShowDialog() == true)
     {
         filePath = saveFileDialog.FileName;
         ReadSaveExcelService saveExcel = new ReadSaveExcelService();
         saveExcel.SaveData(DataCollection, filePath);
     }
 }