title: Sharepoint document link in read-only mode
body: <p>I have .docx files in a sharepoint library. When I open file by the link, it opens in read-only mode
  BUT
  I can click "Enable edit", edit this document and save it to the sharepoint library.</p>
  
  <p>Can I set only "read-only" permissions for this file?
  How can I use DispEx for this?</p>