This is a fairly simple process that I came across when toying around with some data from my Fantasy Football league.
I already had an existing Google Sheet document set up in Google Drive. I was able to format everything to my liking within Google Sheets, and then paste a simple HTML code within blogger.....resulting in the embedded table you see above. The table contains multiple tabs that can be toggled through to look at various statistics related to my fantasy football league.
The code I used to embed the document is below:
<iframe height="400" src="INSERT URL HERE;headers=false" width="4000"></iframe><
Google Sheets makes this fairly simple, even with very limited HTML knowledge. The option to "Publish to the Web" and then "Embed" is available within Google Sheets, and provides the base code for embedding the document. All I had to do was then define the "height" and "width" of the embedded table, which I included at the end of the script.