Excel formulas are limited to 30 arguments.

You will have to find some other way.

Sheila's suggesyion has merit.


Gord Dibben MS Excel MVP

On Tue, 11 Jul 2006 08:19:01 -0700, Sheila D
wrote:

I seem to think that the maximum length of a text string is something like
250 characters which is probably what is causing the problem. Can you add up
the 3 cells in each book and then just include the totals in your new book?
HTH - Sheila
www.c-i-m-s.com
MS Office training - London

"Andy" wrote:

I have 21 workbooks. I need to add up 3 cells out of each workbook and place
it in a seperate workbook. In other words how do I add up 60 cells or so? I
have tried by just opening the workbooks and then highlighting the cells and
then adding them up but I can only get 25 cells or so.

Any idea's or comments will be greatly appreciated.

Thanks once again!