You can embed Google Sheets spreadsheets into your site.

First, visit Google Sheets and open the Google Sheets spreadsheet that you want to embed.

Click File on the menu, then click Share > Publish to web.

On the Publish to the web dialog, click the Publish button.

Stay on the Link tab and copy the embed link.

Go to the Owlstown Editor. Add a Google Docs block to your page. Paste the embed link you copied into the URL field of the Google Docs block.

This is what the embedded spreadsheet would look like.