To edit the data label font
main topic     example 

Select and double-click all data labels or a single label. See Selecting groups and single items.

2    Click the Font tab.

3    To change font attributes, do any of the following:

·    Under Font, enter a font name.

·    Under Style, check Bold, Italic, and/or Underline.

·    Under Size, enter a font size.

·    From Color, choose a text color.

4    In Text, type text to change an existing data label. (Only available if an individual data label is selected.)

5    Click OK.