You might be asking yourself what a font is. Simply put, a font is a style of type that is a particular typeface and size. Excel comes with many different fonts ready for you to use, and you can switch between them at any time. In the Normal template, which is the one applied when you create a new workbook, the default font is Arial and the font size is 10 points.
Font— A typeface and size set for letters, numbers, and special characters.
Excel displays various fonts on the Formatting toolbar and provides a fast way to change the font. You can select a font from the Font box on the Formatting toolbar.
The Formatting toolbar contains ...