In a spreadsheet, the different types of data that can be entered are:
Constant values: it is a data that is entered directly in a cell. It can be a number, a date or time, or a text.
Numbers: To enter numbers you can include the characters 0,1,2,3,4,5,6,7,8,9 and special signs + - () /% E e.
Date or Time: To enter a date or time, simply write it in the way you want it to appear.