Thanks to both Mike H and Bob Umlas... exactly the result I was seeking.
My target audience, however, is likely to disable macros upon opening the
workbook... anyway to disable that warning?
There are t ways around it. One is to have your users set their macro
security to low. The down side is that if a workbook contains a virus then
they will open it without warning and get infected. A better option is to
digitally sign your work. That makes your work into a trusted source and the
book can open without need for the macro security alert... Check out this
link...