use this,
Private Sub Workbook_BeforePrint(Cancel As Boolean)
ActiveSheet.PageSetup.LeftFooter =  ActiveWorkbook.FullName
End Sub

To put in this macro, from your workbook right-click the workbook's icon and
pick View Code. This icon is to the left of the "File" menu this will open
the VBA editor, in the left hand window double click on thisworkbook, under
your workbook name, and paste the code in the window that opens on the right
hand side, press Alt and Q to close this window and go back to your
workbook, now this will run every time you print the workbook. If you are
using  excel 2000 or newer you may have to change the macro security
settings to get the macro to run. File must be saved first to get the full
name.