Another way is to use VBA. Right click the sheet tab>View Code and paste the
below code...Get back to workbook and try in that sheet..What ever you type
in will turn to upper case...
Private Sub Worksheet_Change(ByVal Target As Range)
Target = UCase(Target)
End Sub
PS: If you dont find this working set the Security level to low/medium in
(Tools|Macro|Security). and retry after restarting the application.