Font Object
Contains the font attributes (font name, font size, color, and so on) for an object.
Using the Font Object
Use the Font property to return the Font object. The following example formats cells A1:C5 as bold.
Worksheets("Sheet1").Range("A1:C5").Font.Bold = True
If you don’t want to format all the text in a cell or graphic the same way, use the Characters property to return a subset of the text.