Exceljet

Quick, clean, and to the point

Move active cell left in a selection

Windows shortcut 
ShiftTab
Mac shortcut 
Tab

This shortcut will move the active cell left one cell when there are multiple cells selected.

I don't think you understand how much your training has changed my life in terms of work efficiency and effectiveness not to mention minimizing my stress, anxiety and enabling me to shine in front of employers. -Veronika
Excel foundational video course
Excel Pivot Table video training course
Excel formulas and functions video training course
Excel Shortcuts Video Course
Excel Charts video training course