Exceljet

Quick, clean, and to the point

Extend the selection to the last cell right

Windows shortcut 
CtrlShift
Mac shortcut 

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

Related videos

The videos below demonstrate this shortcut.
In this video, we'll use MATCH to find the position of an item in a table, and the INDEX function to retrieve the value at that position in a two-way lookup.
In this video, we'll look at how to use conditional formatting to highlight entire rows using multiple criteria.
Once you have one pivot table set up, you might want to see a different view of the same data. In this video, I'll show you how to base one pivot table on another.
In this video, we'll take a quick look at the information provided by the status bar. The status bar provides real-time data about currently selected cells and can give you a lot of useful information.
In this video, we'll look at how to use conditional formatting to shade alternating groups of rows - groups of 3 rows, groups of 4 rows, and so on.