Apply formula to the entire column

Question

I\'m trying to recode all the zip code from Column A into Column B with the formula:

=TEXT(A1,\"00000\")

Like this:

Answer 1

To be clear when you us the drag indicator it will only copy the cell values down the column whilst there is a value in the adjacent cell in a given row. As soon as the drag operation sees an adjacent cell that is blank it will stop copying the formula down.

.e.g

1,a,b
2,a
3,
4,a

If the above is a spreadsheet then using the double click drag indicator on the 'b' cell will fill row 2 but not row three or four.