Select the cell where you want the checkmark
Go to the Insert tab
Click Symbol
Choose a font such as Wingdings or Segoe UI Symbol
Select the checkmark symbol
Click Insert
Close the Symbol dialog box
Type a checkmark using a keyboard shortcut if supported
Copy and paste a checkmark from another cell or document
Use the Wingdings 2 font and type the corresponding character
Insert a checkbox from the Developer tab if you want an interactive checkmark
Use the CHAR or UNICHAR function to display a checkmark in a formula
Use AutoCorrect to replace a typed shortcut with a checkmark