After deploying Windows 10 v1709 (Fall Creators Update) and when opening an Excel spreadsheet I’ve noticed a strange behavior where even on a blank spreadsheet the mouse cursor seemed to flicker all the time.
Thought it was something related with my display driver so I’ve updated to a different one and still the same behavior. It’s something like the video below.
This is still an ongoing investigation like reported on Microsoft Office Support website:
Excel cursor flickers after updating to Windows 10 Fall Creators Update (v1709)