Click the File tab near the upper-left corner of the program window.Click the Set As Default button at the bottom of the Font window, then click the OK button to save the new default settings.In the Font window, select the Font, Font style, Size, or any other font settings that you want set as default.The icon has an arrow pointing down and to the right. On the Home tab, click the small icon in the bottom-right corner of the Font section.