I have embedded an Excel file (<2Mb) to my website using the following code generated using OneDrive.
<iframe width="1150" height="1300" frameborder="0" scrolling="no" src="https://1drv.ms/x/c/8d06bfc014a24e6f/IQMWRn035ZjpSYXJqNaciXhFAfXO7kfIhooSmKGnNnu0xbo?AllowTyping=True&wdHideGridlines=True&wdHideHeaders=True&wdInConfigurator=True&wdInConfigurator=True"></iframe>
As you can see, the option allowing users to type into cells is activated.
Surprisingly, the preview in OneDrive worked as expected, but the result was dissatisfying. After the embedding, the integrated sheet is unresponsive to my attempts to change blue cells.
In addition, if you click on the "view full document" button (lower right corner), it opens as a view-only document without any editing allowed. This worries me less, but I need users to be able to change blue cells.