It is unclear what you mean by summarizing text values or dates. You can
sum "amount"/a number.

=sum('06180:06189'!P40)

You can put in two dummy sheets, for example one name Start and one named
End, then put all your sheets and any new sheets between these two sheets
(in the tab order). Then your formula

=sum(Start:End!P40)

will include new sheets you add.

Look in Excel help at 3D references.

--
Regards,
Tom Ogilvy



"Jade" wrote in message
...

We have a spreadsheet that has worksheets names 06180 to 06189. I want to
create a summary worksheet of some of the data. The worksheets are
identical
and the data that I want will always be the same.

The worksheets are named 06180 to 06189.

Date (H7)
Supplier (B8)
Purchase Order Number (H9)
$ Amount (P40)

I have not used macros or VBA before and I am thinking this is the only
way
to be able to summarise the data that I want.

Also at the end of every month we use a new spreadsheet so how do make it
so
its easy for me to change formulas etc for a new spreadsheet??