title: How to add a downloaded .box file to Vagrant?
body: <p>How do I add a downloaded <code>.box</code> file to Vagrant's list of available boxes? The <code>.box</code> file is located on an external drive.</p>
  
  <p>I tried running <code>vagrant box add my-box d:/path/to/box</code>, but Vagrant interprets the path as a URL.</p>