Usually, when the Scroll Lock is disabled, arrow keys move you between individual cells in any direction: up, down, left or right. Scroll Lock is the feature that controls the behavior of the arrow keys in Excel. How to disable Scroll Lock in Excel for Mac.How to turn off Scroll Lock in Excel for Windows.How to determine that Scroll Lock is on.You have just accidentally turned Scroll Lock on, and this can be easily fixed. You are working on a spreadsheet normally when all of a sudden you notice that you cannot move from cell to cell - instead of getting to the next cell, the arrow keys scroll the whole worksheet.