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Display Delete dialog box

Windows shortcut 
Ctrl-
Mac shortcut 
⌘-

This shortcut will display the Delete dialog box, as long as whole columns or rows are not selected.

Note: In Mac 2016, Control - also works (same as Windows).

222 Excel Shortcuts for Windows and Mac

Related videos

The videos below demonstrate this shortcut.
Shortcuts to insert/delete rows and columns
In this lesson, we cover shortcuts you can use to insert or delete cells, rows, and columns.
How to fill in missing data part 2
In this video, we'll look at a way to fill in missing data using a formula created with the IF and ISBLANK functions.