Use the consolidation function. No problem!
See the Excel Help topic for "Refer to the same
cell or range on multiple sheets by using a 3-D
reference".
Yes, first put in your =sum(
then goto the first sheet and click on the cell you want.
then with the shift key pressed highlight all the sheets you need, then hey presto you should have someting like.
=SUM(Sheet2:Sheet60!C10)
BE WARNED!! this only work with consecutive sheets (no gaps) as the Control key can't be used instead
you can use a comma
=SUM(Sheet2:Sheet3!D10,Sheet5:Sheet60!D10)
but it does give you same problem of long formulas
Ian