Hi,

Is it possible to write an "IF" statement which checks not the value of the
cell, but whether the formula in cell gets data from a certain "Sheet".

Let say, in "A1" cell of the "Sheet4" I have this formula
"=Sheet1!A1+Sheet2!A1+Sheet3!A1". I would like to check whether the formula
in cell "A1" of "Sheet4" uses data from "Sheet2". Is this possible?

Thanks.