Formatting all data labels on a chart at once

[VancitysFinest]

I have a stacked column chart.
How do I format all of the data labels togethor (i.e. to set them all
to a smaller font?)

I can do one stack at a time, but not all of them. Also I have data for
future months that will be populated later, so its not feasible to only
format the visible data labels. Thanks!

 

[Bob Umlas]

Select the chart, then format the font.
Don't select the individual columns to do it.
Granted, this will change the font for every item in the chart, but it may
be a shorter way.