If I select a cell containing a formula, I know I can drag the little box in the right-hand corner downwards to apply the formula to more cells of the column. Unfortunately, I need to do this for 300,000 rows!
Is there a shortcut, similar to CTRL+SPACE, that will apply a formula to the entire column, or to a selected part of the column?
Select a range of cells (the entire column in this case), type in your formula, and hold down Ctrl while you press Enter. This places the formula in all selected cells.
Try double-clicking on the bottom right hand corner of the cell (ie on the box that you would otherwise drag).
If the formula already exists in a cell you can fill it down as follows:
On Mac, use CMD instead of CTRL.
An alternative if the formula is in the first cell of a column: