title: Doc, ppt, xls mime type
body: <p>I try to open <strong>doc, ppt, xls</strong> and <strong>pfg</strong> files with app installed via intent. For <strong>pdf</strong> I use <code>i.setDataAndType(Uri.fromFile(file), "application/pdf");</code>
  but if I do following:</p>
  
  <pre><code>i.setDataAndType(Uri.fromFile(file), "application/doc");
  </code></pre>
  
  <p>I receive exception, saying that there are no apps, that can handle intent. What am I doing wrong?
  I've got QuickOffice installed, so I think it could open file.</p>