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Extend the selection to the last cell down

Windows shortcut 
CtrlShift
Mac shortcut 

If the active cell is empty, Excel will extend the selection to the first non-empty cell below the active cell. If the active cell is non-empty, Excel will extend the selection on the last non-empty cell below the active cell. On a Mac, the command key (⌘) can be used instead of the control key.

Related videos

The videos below demonstrate this shortcut.
This video shows how you can replace formulas with the results they return, a useful way to stop Excel from calculating new results.
In this video, we'll look at how to use VLOOKUP with wild cards. This is useful when you want to perform a lookup based on a partial match.
Pivot Tables are fantastic tools for summarizing data, but you can also use formulas to build your own summaries using functions like COUNTIF and SUMIF. See how in this 3 minute video.
This video shows how to use VLOOKUP to merge data in two tables based on a common ID. You can even use this technique to reorder the columns you retrieve.
This video provides a brief introduction to structured references. Structured references are an easy way to refer to tables in Excel formulas.

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