private void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e)
 {
     if (error == false)
     {
         XLSDataSpelers.WriteXLS();
     }
 }
        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            // Data initialiseren
            Data.Init();

            // Gebruikers aanmaken
            files = new DirectoryInfo(dataFolder + @"/Spelers").GetFiles();
            foreach (var file in files)
            {
                Data.Users.Add(new User()
                {
                    Name = file.Name.Replace(".xls", ""), xlsLocation = file.FullName
                });
            }

            // Read Scores
            XLSDataSpelers.Init();
            XLSDataSpelers.ReadXLS();

            // Read user XLS
            foreach (var user in Data.Users)
            {
                XLSUser.Init(user);
                XLSUser.ReadXLS();
            }

            // Read main XLS
            XLSMainData.Init();
            XLSMainData.ReadXLS();
        }