private void Window_btnSaveClicked(object sender, EventArgs e)
        {
            // Load selected timeline
            Tweets tweets = (from i in TimeLines where i.Name == Window.SelectedTimeLine select i).First().GetTweets();

            // Load se;ected parser
            Parser.Parser parser = (from i in Parsers where i.Name == Window.SelectedParser select i).First();

            if (parser == null)
            {
                new ErrorDialog("There is no parser with this name");
                return;
            }

            if (tweets == null)
            {
                new ErrorDialog("There was a problem loading the list");
                return;
            }

            try
            {
                string path;
                if (Window.Path.EndsWith(parser.Extension))
                {
                    path = Window.Path;
                }
                else
                {
                    // Add proper extension
                    path = String.Concat(Window.Path, parser.Extension);
                }

                FileManager.FileWriter fileManager = new FileManager.FileWriter(path);
                parser.Save(tweets, fileManager.Stream);
                fileManager.Dispose();

                SuccessDialog successDialog = new SuccessDialog("The backup was successfully performed");
                Window.Hide();
            }
            catch (Exception ex)
            {
                new ErrorDialog(ex.Message);
            }
        }