/// <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);
     }
 }
        /// <summary>
        /// Odczytywanie danych z pliku excel
        /// </summary>
        private void ImportExcel()
        {
            string filePath = string.Empty;
            OpenFileDialog openFileDialog = new OpenFileDialog();
            openFileDialog.Filter = "Excel files (*.xls;*.xlsx)|*.xls;*.xlsx|All files (*.*)| *.*";
            if (openFileDialog.ShowDialog() == true)
            {
                filePath = openFileDialog.FileName;
                ReadSaveExcelService readExcel = new ReadSaveExcelService();
                ExcelDataCollection = new ObservableCollection<DataGps>(readExcel.LoadData(filePath));
                DataCollection = new ObservableCollection<DataGps>(ExcelDataCollection);
                _isWindSelected = false;
                GetWindParameters();
                _isDataFromExcel = true;
                ClearPlot();
                if (DataCollection.Count != 0)
                    IsAccepted = true;

            }
        }