Microsoft Office Online Extension (1.5.12). I tried it a bit on Edge Canary ( 18.104.22.168) via Windows 10 to see how nice/compatible it works and it works great. If anyone wants the extension here it is: is: https://chrome.google.com/webstore/detail/office-online/ndjpnladcallmjemlbaebfadecfhkepb
It works really nice with the new Edge. I was using the Excel and Word and it had a nice and smooth interface and user friendliness. Pictures:
Thank you for the quick preview @ItalianAce.