Try a 3D formula like the following:

=SUM(Sheet1:Sheet90!A1)


--
Cordially,
Chip Pearson
Microsoft MVP - Excel
Pearson Software Consulting, LLC
www.cpearson.com



"Seti" wrote in message
...
I am creating a massive workbook with roughly 90 worksheets. I
need a
formula to count all the numbers in one cell for all 90 sheets
and total it
in one cell. Any ideas, I'm fairly new at this.