Here's a workaround to access Office Web Apps on the iPad right now, with the help of the Chrome iOS browser.

Microsoft this week began testing mouse and trackpad support in the latest beta versions of its Word and Excel apps for iPad. The functionality was introduced in version 2.42 of each app ...

Microsoft plans to add trackpad and mouse support to its Word, Excel, and PowerPoint apps for iPad by the fall, according to TechCrunch and The Verge. iPadOS 13.4 introduced trackpad and mouse ...