A font is a collection of alphanumeric characters that share the same typeface , or design, and have similar characteristics. Most fonts are available in a number of styles (such as bold and italic) and sizes. The size of each font character is measured in points (a point is approximately 1/72 of an inch). You can use any font that is installed on your computer on a worksheet, but the default is 10-point Arial.
Change Font, Font Style, and Font Size
Change Font and Font Size Using the Formatting Toolbar