Yellow circle around mouse pointer inside Excel

Hello, I want to know how to add a yellow circle around the mouse pointer in Excel. Please see the video below. She has yellow circle around mouse cursor in Excel.
I did google and I managed to change my mouse pointer to yellow but NOT inside Excel. Any help would be appreciate it.

https://www.youtube.com/watch?v=PIzKFG9kLi4&t=57s

that did not look like feature of windows or excel. it looked like something added with the person's video software.