title: cant find object using reference in workbook
body: <p>I'm trying to remove an old reference to Microsoft Office Web Components 11 (32 bit) in a workbook I'm updating, so it can run on office 365 (64 bit). I've removed all the objects I could find in sheets, and I've edited the code, so it now works, but I still get an error message saying:</p>
  
  <pre><code>Can't remove control or reference; in use
  </code></pre>
  
  <p>How do I find out where it is being used, so I can remove the reference and change it?</p>