I would like to determine all the cells used by formula in
another cell. For example:

Cell A1 contains the formula =B1+B3/B5

I would like to create a procedure to let me know that B1,
B3, and B5 are used as inputs to cell A1. The idea is
basically the same as Excel's "trace Precedents" feature,
but instead of seeing the arrows, I would like a list of
the cell addresses (note that the addresses may or may
come from different worksheets)...Any ideas would be
greatly appreciated. TIA