Let's face it, Office 97, or 2000 at the latest, is peak office productivity software. Everything since then has been backslide and churn for the sake of selling new licenses.
Excel has dramatically improved since then. It’s not even close. It’s much more powerful. I’d also argue that the whole OneDrive/SharePoint live syncing/version history/sharing is also a huge productivity enhancer, though that’s not directly related to what the programs themselves can do.