Exceljet

Quick, clean, and to the point

Copy value from cell above

Windows shortcut 
CtrlShift"
Mac shortcut 
⌃⇧"

This shortcut copies the value in the cell above to the selected cell and leaves the cell in edit mode. If the cell above is a formula, only the value is copied.

222 Excel Shortcuts for Windows and Mac

Download 200+ Excel Shortcuts

Get over 200 Excel shortcuts for Windows and Mac in one handy PDF.