Thanks for your answer Roger. I knew about this formula, but still I
would need the formula to sum according to provided list of data entry
sheets. The formula I wrote in my second post works perfectly, the
only problem is that it's going to be too long to enter if I make it
for 30 sheets.


On Oct 11, 12:20 pm, "Roger Govier" <rogerattechnology4NOSPAMu.co.uk
wrote:
Hi

You can use something like
=SUM(Sheet1:Sheet30!A1)

OR, what I prefer, (and it isn't dependent upon having sheets named 1 to
30), you can insert 2 dummy sheets called First and Last.
Drag these so that they encompass your sheets to be summed, in a sort of
"sandwich", with your summary sheet outside of this range. Then
=SUM(First:Last!A1)

--
Regards
Roger Govier

wrote in message

oups.com...

Hi everybody,

I'm having a little problem with my excel table.

I have many sheets for entering data, they look exactly the same, just
the sheet name is different. Then I also have the summary sheets, that
are also the same as the one for data entry, just they contain
formulas to sum data from data entry sheets.

So what I'm trying to make a list of data entry sheets in the summary
sheet and then the formula that would sum all the data entered in the
listed sheets in the same cell address where the formula is located.

The list of sheets to sum could contain let's say up to 30 places.

And another quick question. Is it possible to somehow link make some
kind of "master formula" and then use it in multiple cells, so when
you change the master formula all the cells that use it change too.

Thanks.