title: Run-time error upon opening excel file
body: <p>I'm trying to open excel files in a <code>button_click</code> event. I don't encounter any errors with the first four excel files i opened, but as my macro open the fifth one, it stops and shows this run-time error:</p>
  
  <pre><code>Run-time error '-2147021892 (80070bbc)':
  
  office has detected a problem with this file. 
  To help protect your computer this file cannot be opened.
  </code></pre>
  
  <p>Here's my code for opening excel files:</p>
  
  <pre><code>    Set wb = Workbooks.Open(fileName:=fileName, UpdateLinks:=True)
  </code></pre>