It's been possible for multiple people to edit an Excel file simultaneously for a long time. Since 2017 (at least) you can use OneDrive as the file location, so

It's been possible for multiple people to edit an Excel file simultaneously for a long time. Since 2017 (at least) you can use OneDrive as the file location, so you get all those syncing and sharing benefits you mentioned. The newer Click-to-Run installer takes about 2 minutes to get the app to a usable state, and if that's just too long, there's always https://office.live.com/start/Excel.aspx https://office.live.com/start/Excel.aspx