title: How Does Microsoft Office knows if a document was downloaded from the internet?
body: <p>Does anyone knows how Microsoft Office knows if a document was downloaded from the internet?</p>
  
  <p>When I open a Word document that was downloaded from the internet, for example, it opens it in some kind of a safe mode..</p>
  
  <ol>
  <li><p>How Does Office knows the file was downloaded from the internet?</p></li>
  <li><p>Is it possible to bypass this protected view (by signature for example)?</p></li>
  </ol>