owl37 wrote:
Hi all,
I have a spreadsheet like the following:

heading 1 heading 2 heading 3
213
212 24
213 7
214
215
216 12

What I need is a formula which can look into cell b2, and if it finds a
blank cell, return the value in cell A2, if it finds a value in cell B2 then
return that value.
How do I ask the if function to look for a blank cell?
Thanks for youe help.

Owl37

There are two different types of "blank" that you need to consider. Is
the cell truly blank (ie. nothing there) or is there a formula that
returns blank. If you want to consider the second case or both cases
you could say:

=IF(B2="",A2,B2)

If you are looking for cells that only consider the first case:

=IF(ISBLANK(B2),A2,B2)

Edward