It is related to the FlashCard App-Template. It is the model of cards.
 /// <summary>
 /// It reads the Flash-Card App-Template, from the .buildmlearn file.
 /// </summary>
 /// <param name="fileName">Name of the file</param>
 public static void readFlashFile(string fileName)
 {
     try
     {
         FlashModel model = FlashModel.getInstance();
         List<Card> cardList = new List<Card>();
         XmlDocument doc = new XmlDocument();
         doc.LoadXml(XDocument.Load("Assets/Apps/" + fileName + ".xml").ToString());
         model.setFlashName(doc.GetElementsByTagName("title").ElementAt(0).InnerText.Trim());
         model.setFlashDescription(doc.GetElementsByTagName("description").ElementAt(0).InnerText.Trim());
         string[] author = doc.GetElementsByTagName("author").ElementAt(0).InnerText.Split('\n');
         model.setFlashAuthor(author[1].Trim());
         model.setFlashAuthorEmail(author[2].Trim());
         model.setFlashVersion(doc.GetElementsByTagName("version").ElementAt(0).InnerText.Trim());
         XmlNodeList item = doc.GetElementsByTagName("item");
         // looping through all item nodes <app>
         for (int i = 0; i < item.Length; i++)
         {
             string[] ar = item.ElementAt(i).InnerText.Split('\n');
             Card card = new Card(ar[1].Trim(), ar[2].Trim(), ar[3].Trim(), ar[4].Trim());
             cardList.Add(card);
         }
         model.setCardList(cardList);
     }
     catch (Exception) { }
 }