title: Unable to install any add-in for Excel Desktop in MacOS Catalina (Microsoft Excel cannot access the file)
body: <p>I get an error when I try to install an add-in for MacOS Catalina (10.15.5) and Excel for Mac (16.37 2005 1002)</p>
  <p>As a sample, you can try Microsoft People Graph.</p>
  <p><a href="https://i.stack.imgur.com/3lVXX.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/3lVXX.png" alt="enter image description here" /></a></p>
  <p><a href="https://i.stack.imgur.com/UXIsB.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/UXIsB.png" alt="enter image description here" /></a></p>