Add Lines To Text File & Read Back Line By Line

	StorageFolder Folder1 = ApplicationData.Current.LocalFolder;
	StorageFile File1 = await Folder1.CreateFileAsync("MyFolder\\MyFile.txt", CreationCollisionOption.OpenIfExists);
	if (File1 != null)
	{
		string[] TagIds = new string[1];
		TagIds[0] = NewRfidTagId;
		await FileIO.AppendLinesAsync(File1, TagIds);
	}

	StorageFolder Folder1 = ApplicationData.Current.LocalFolder;
	if (Folder1.TryGetItemAsync("MyFolder\\MyFile.txt") != null)
	{
		//File Exists
		StorageFile File1 = await Folder1.GetFileAsync("MyFolder\\MyFile.txt");
		var ReadFile = await FileIO.ReadLinesAsync(File1);
		string[] TagsToSend = ReadFile.ToArray();
	}