title: Microsoft R .xdf file
body: <p>I got some question about the .xdf file:</p>
  
  <ol>
  <li>What is this exacly?</li>
  <li>How does this type of file work?</li>
  <li>How Microsoft R works with this typ of file?</li>
  <li>What are the advantages agains data.frames? </li>
  </ol>
  
  <p>I'm really looking forward to your answers.</p>
  
  <p>Greetings R123456789</p>