private void ProcessFile(ExcelLayer excelLayer, string inputFilePath)
		{
			switch (SelectedDirectionConvert.Direction)
			{
				case DirectionConvert.FromGtmsToCarrier:
					IEnumerable<GtmsFormatTarrifModel> gtmsTariffs = excelLayer.GetTariffFromGtms(inputFilePath);
					var carrierTariffs = SelectedTariffType.Map(gtmsTariffs);
					var carrierTariffFilePath = string.Format("{0}{1}",
						Path.Combine(_rootPath, PrefixCarrierOutputFileName + ' ' + Path.GetFileNameWithoutExtension(inputFilePath)),
						Path.GetExtension(GtmsFromatTariffPath));
					var targetFilePath = string.Empty;
					switch (SelectedTariffType.Type)
					{
						case TarrifType.Ltl:
							targetFilePath = CarrierLtlFromatTariffPath;
							break;
						case TarrifType.Vor:
							targetFilePath = CarrierVorFromatTariffPath;
							break;
					}
					File.Copy(targetFilePath, carrierTariffFilePath, true);
					excelLayer.WriteTariff(carrierTariffs, carrierTariffFilePath);
					break;
				case DirectionConvert.FromCarrierToGtms:
					IEnumerable<CarrierFormatTariffModel> carrierTarrifs = null;
					switch (SelectedTariffType.Type)
					{
						case TarrifType.Ltl:
							carrierTarrifs = excelLayer.GetLtlTariff(inputFilePath);
							break;
						case TarrifType.Vor:
							carrierTarrifs = excelLayer.GetVorTariff(inputFilePath);
							break;
						default:
							break;
					}
					var outputCarrierTarrifs = SelectedTariffType.Map(carrierTarrifs);
					var outputFilePath = string.Format("{0}{1}",
						Path.Combine(_rootPath, PrefixGtmsOutputFileName + ' ' + Path.GetFileNameWithoutExtension(inputFilePath)),
						Path.GetExtension(GtmsFromatTariffPath));
					File.Copy(GtmsFromatTariffPath, outputFilePath, true);
					excelLayer.WriteTariff(outputCarrierTarrifs, outputFilePath);

					break;
			}
		}
		private async void StartProcessingFiles(object sender, RoutedEventArgs e)
		{
			StartConvertButton.IsEnabled = false;
			ClearFileListButton.IsEnabled = false;
			SelectFileButton.IsEnabled = false;
			await Task.Run(() =>
			{
				foreach (var logModel in _logModels)
				{
					try
					{
						Dispatcher.Invoke(() => logModel.Status = ProcessStatus.Processing);
						using (var excelLayer = new ExcelLayer())
						{
							ProcessFile(excelLayer, Path.Combine(_rootPath, logModel.InputFileName));
						}
						Dispatcher.Invoke(() => logModel.Status = ProcessStatus.Success);
					}
					catch (AuthenticationException exception)
					{
						MessageBox.Show("Error", exception.Message, MessageBoxButton.OK, MessageBoxImage.Error);
						Dispatcher.Invoke(() => logModel.Status = ProcessStatus.Error);
						LogManager.Logger.Error(exception);
					}
					catch (Exception exception)
					{
						Dispatcher.Invoke(() => logModel.Status = ProcessStatus.Error);
						LogManager.Logger.Error(exception);
					}
					finally
					{
						Dispatcher.Invoke(() => logModel.OutputFileName = string.Format("{0} {1}", PrefixGtmsOutputFileName, logModel.InputFileName));
					}
				}
			});
			ClearFileListButton.IsEnabled = true;
			SelectFileButton.IsEnabled = true;
		}