I am looking for a way to have Excel identify and record the ID used to log
onto the computer as a way of identifying who has accessed/opened the Excel
file. So if I open the Excel file, I want the workbook to record my computer
Login ID on a sheet in cell A1. Then if my coworker opens the file I want
their ID to be recorded under mine in cell A2, the next coworker in cell A3
and so forth.
I found a way to do this operation in Access but now I need the same thing
in Excel.

Any help is greatly appreciated!
Stephen W