title: Create a tree list/table in Excel using Apache POI
body: <p>How can I create a tree list/table in Excel using Apache POI? I haven't been able to find anything in the documentation nor on google/so.</p>
  
  <p><a href="https://i.stack.imgur.com/l2oHA.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/l2oHA.png" alt="Example how it should look like"></a></p>