Disabling scroll lock on a Mac is just as easy-but only if you have a full-size keyboard. When you do this, the border under row 1 is a little darker than other.
If the Freeze buttons aren't available on the View tab, make sure you switch to Normal view.
To do this, you use the Freeze buttons on the View tab. You want to scroll, but you want to see your top row or left column to stay still.