Square symbol in Excel

In order to insert a square symbol in Excel, you have to do the following.

  1. Enter the formula, you want to use. E.g. c2 = a2 + b2,

  1. Select first 2 and expand the font window (Ctrl + 1),

  1. A new window will appear. Check superscript and press OK,

  1. Convert the other two into squares, and you have a mathematical formula.