***Turn Off and On Scroll Lock for Excel, Some Notebook No Scroll Lock Button

 scroll lock

 https://support.microsoft.com/en-us/office/turn-off-scroll-lock-a78492cc-c124-4782-a38b-df46669520e0

Scroll lock is a keyboard feature that locks the scroll bar, allowing you to use the arrow keys to navigate a document without accidentally moving the page. It's especially useful when working with long documents.