title: Invoking Word for rtf to docx conversion
body: <p>I have a need to routinely programmatically convert *.rtf files into *.docx. Manually, this works just fine with Save As inside Word 2007 ... the resulting docx behaves just fine.  Programmatically, I can't get it to work.  </p>
  
  <p>What I tried is basically the following:  </p>
  
  <p><a href="https://stackoverflow.com/questions/4647018/fetch-rtf-from-word/4647132#4647132">Fetch RTF from Word</a></p>
  
  <p>... but in the reverse direction. Instead of opening *.docx and using SaveAs to *.rtf, I'm opening the *.rtf and using SaveAs to *.docx.  However, the resulting file won't open, and so evidently there's something I don't understand.  Is </p>
  
  <pre><code>wordApp.Documents.Open(@"D:\Bar\foo.rtf")
  </code></pre>
  
  <p>not a legit thing to do? </p>
  
  <p>Any thoughts about how to do this would be appreciated.</p>