I am wondering if anyone can tell me a simple macro or way on workbook open
to flag when the plot range has been expanded ?

For example..
I have several workbooks which have macros that automatically update the
data in these workbooks and also update / expand the plot range of the charts
based on the data in the workbook. I am looking for a macro that can pop up a
message box letting me know when a plot range has been expanded since the
last time the workbook was opened.

Dan Thompson