3-D formulas

[Nan]

If I want to set up a 3-D formula that is not just between worksheets in the
same workbook, but a formula that is between different workbooks, how do I do
it?

 

[Gordon]

If I want to set up a 3-D formula that is not just between worksheets in
the
same workbook, but a formula that is between different workbooks, how do I
do
it?

Just like any other formula - open both workbooks and when you write the
formula, just select the cells to use from the other workbook...