Hi @Patrick Rutherford ,

According to my research and testing, you can embed editable files on the site by changing action=embedview to action=edit , please follow these steps to test:

1.Select the file need to be displayed from the SharePoint library (e.g. Word).
2.Open the file in browser (Word Online) >> Click on File >> Share >> Embed .
3.Copy the Embed Code :
4.Edit action=embedview to action=edit in Embed Code, for example:
5.Now, navigate to your Modern SharePoint Online page. Add an “ Embed Web part ” and paste the code to Website address or embed code .

6.Save and Publish the page.

My test :(Two different users can modify the files in the iFrame and see each other's modifications in this page)

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Hi Tong!

I really appreciate the detailed answer! I still can't seem to get it to do what I was wanting exactly. So after changing the iFrame src to have action=edit, the iFrame seems to not load. I get a message saying it'ss being refused. I think this may work for you because you're posting it on a sharepoint page but I was trying to post it on my own webpage.

It's possible I'm missing something though, any ideas?

Thanks again for your help!

Hi Patrick!

I'm also trying to have editable excel spreadsheets on my own webpage!

Tong's answer is great but, like you, maybe not what I am after as I'm not working with a sharepoint page.

I was just wondering whether you got this going or not?

Thank you!