How to show current user name in a cell?

Question

In most of the online resource I can find usually show me how to retrieve this information in VBA. Is there any direct way to get this information in a cell?

For example

Answer 1

This displays the name of the current user:

Function Username() As String
    Username = Application.Username
End Function

The property Application.Username holds the name entered with the installation of MS Office.

Enter this formula in a cell:

=Username()