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Enter and move left

Windows shortcut 
ShiftTab
Mac shortcut 
Tab

This shortcut is an alternative to pressing enter/return when entering data. It's useful when the next value you want to enter is to the left.

Related videos

The videos below demonstrate this shortcut.
In this video, we'll look at the options available for Excel Tables, including automatic range expansion and a setting to automatically fill formulas.
In this lesson, we cover shortcuts you can use to to enter data in one or more cells at a time. Knowing these tips can really speed up editing in Excel.