title: Unexpected characters in saved file using SaveFileDialog
body: <p>Code:</p>
  
  <pre><code>private void btnSaveFile_Click(object sender, EventArgs e)
  {
      listBox1.MultiColumn = true;
      SaveFileDialog sfd = new SaveFileDialog();
      sfd.Filter = "Text File|*.txt";
      if (sfd.ShowDialog() == DialogResult.OK) ;
      {
          string path = sfd.FileName;
          BinaryWriter bw = new BinaryWriter(File.Create(path));
          foreach (string s in hello)
          {
              bw.Write(s + Environment.NewLine);
          }
      }
  </code></pre>
  
  <p>output for</p>
  
  <p><img src="https://i.stack.imgur.com/bnsQU.jpg" alt="this"> </p>
  
  <p>I really don't know how to get rid of those characters.</p>