Reference an excel sheet from another workbook without copying the sheet

Question

Im wondering if it\'s possible to reference an excel sheet from another work book without making a copy of that sheet?

The situation : I have some very large workshe

Answer 1

=SUM('C:\test\[test.xlsx]sheet_name'!A1:A25)

is an example of a formula which references sheet sheet_name in workbook C:\test\text.xlsx.

Note that when the other workbook is opened, the formula automatically changes to

=SUM([test.xlsx]sheet_name!A1:A25)

and then when it is closed, the formula will change back.