title: Microsoft Project Plan in xml format
body: <p>Project Plan has functionality, that can convert <code>mpp</code> file into <code>xml</code>. </p>
  
  <p>In the xml there are 4 main tags: <em>Calendars</em>, <em>Tasks</em>, <em>Resources</em>, <em>Assignments</em></p>
  
  <p>Is there any description or documentation how these tags are builded?</p>