Hi there.
Here is the link to the Microsoft page I mentioned in the tutorial.
If you decide to go there, scroll to near the bottom of the page, and this is where you will find the spreadsheets for downloading.
You might have to copy and paste the URL.
https://support.microsoft.com/en-gb/office/get-started-with-3d-maps-6b56a50d-3c3e-4a9e-a527-eea62a387030?ui=en-us&rs=en-gb&ad=gb
Thanks.