'Step 1: click "developer" --> macro 
'
'Step 2: enter a name such as hello --> "create" and you will see
'
'        Sub Hello()
'      
'        End Sub
'
'Step 3: type MsgBox ("Hello, World!") then close 
'
'Sub Hello()
'   MsgBox ("Hello, world!")
'End Sub
'
'
'
' Step 4: Click "Developer" - > Macro - > Choose Hello -- > Run 
'
'
'