: I tried the "stop" but nothing triggered.
: The code  is not in the ThisWorkbook Module. I have not
: come across ThisWorkbook. How do I access this ?

Press Control+R to open  the Project Explorer window.
If nothing happens this window is already open. Scroll
down to VBAProject(Name), where "Name" is the name of
your workbook. Click on the plus sign to expand the
folder and double click on ThisWorkbook.