Excel Auto-Fill a Series Without Mouse (Keyboard Only)

So when I want to extend a series or something along those lines, I can highlight a group of cells, then click on the bottom right corner of the highlighting box and drag down. Excel will then attempt to automatically extend the contents as well as it can. Is there a keyboard function that will allow me to do this? I like to use the keyboard to avoid repetitive mouse motions.

I can use the shift key and arrow keys to make a selection, but I don't know what (if any) key can trigger this function.

I also don't really know what this function is actually called.

Solution 1:

You can use keyboard short cuts to get to anything that's on the Ribbon. Press Alt and then you can see the keystrokes next to each section. To bring up the Fill Series dialog box press Alt and then H F I S.

Solution 2:

You're looking for "Fill-Down" or "Fill-Right".

Select the range by moving to the cell to start with... then Shift+↓ or Shift+→ to where you want to fill the contents to... and then press Ctrl+D (to fill-down) or Ctrl+R (to fill-right).

Unfortunately, there is no shortcut key for fill-left or fill-up.

Solution 3:

Use Shift + ↓ to highlight where you want the series to go - must include the filled in cell that you want to key off of.
Alt + H F I S
Shift + Tab F
Enter