Try to use a function like this:
=SUM(Sheet1:Sheet8!A1)
' Sum all of A1 in 8 sheets.

Sheet1 to sheet8 should be continuous and use shift key to select them all.

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Best regards,
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Yongjun CHEN
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"Karyn" wrote in message
...
I have a different worksheet for each day of the week which shows the lates
for invoices per department per store. I am trying to create a worksheet
to
add all of the lates per department together for reporting to the POS.