title: How to enable/add and disable/remove an Excel Add-In using VBA?
body: <p>Something like <code>if addin exists then do nothing else add_addin("AddinName")</code>.</p>
  
  <p>I have a few add-ins, when enabled would first pops up a message. So if I enable them at the excel open automatically, it becomes very annoying. If I can assign a few VBA code to do the enabling and put a quick access button for the code, then it is much easier to manage and I only need to enable them as needed.</p>