This is a known issue by Microsoft.
Short answer, you can't do it. =(
One possible work around is to record a macro of you setting the formatting
of the chart, and then set it up so that the macro runs whenever the chart
calculates.
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.