Hi
=SUM('sheet1:sheet12'!A1)

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Regards
Frank Kabel
Frankfurt, Germany

"TNMAN" schrieb im Newsbeitrag
...
I have a workbook that contains 12 worksheets of identical
data/format and a
13th worksheet I would like to provide totals of the 12 monthly
worksheets.
Is there an easy way to write this sum formula without going to each
worksheet. I am using version 2003. Thanks in aadvance for you
help.