Handsontable would not work for me. Then I discovered it uses JQuery.
Please add jQuery to these HTML lines on https://my.handsontable.com/install.html
<script src="/dist/handsontable.full.js"></script>
<link rel=“stylesheet” media=“screen” href="/dist/handsontable.full.css">
Thanks, Alexandra. You are correct. The problem was the first example I chose from your website. It demonstrates Summary calculations, but needs jQuery. Other examples work fine without jQuery.
Yes, it’s not Handsontable that needed jQuery… It was the other javascript in the example that used jQuery. But now I cannot find the example on your website so perhaps someone else noticed this and removed the example. Good!