280 votes144 comments · Excel for Mac » Charting, Mapping and Visualizations · Flag idea as inappropriate… · Admin →
Good news. We are working on this. In the meantime, we’ve published a macro that makes it easy to set personalized data labels for charts in Excel for Mac. Please see this article for instructions on adding it to your personal macro workbook so that you can control the labels for your charts.mike commented
Idea shared in 2015... and responded to by the Excel team in 2018 ! Guess it will make it to the 2021 release at this rate.