Just some added info:
Note that Workbook_Open is a workbook level event and should be placed in
the ThisWorkbook module of the workbook rather than a sheet module or a
general module.

Go into the VBE (alt+F11) and look in the project explorer (Ctrl+R if it
isn't visible). Find your workbook in the "tree" and look for the
ThisWorkbook entry under that. Double click on ThisWorkbook and the
thisworkbook module will open. In the left dropdown at the top select
Workbook and in the right dropdown, select open. It will put in the
skeleton declaration for the Open Event

Private Sub Workbook_Open()

End Sub

put your code in that declaration or call it from that declaration.

--
Regards,
Tom Ogilvy

"Lieven Roelens" wrote in message
...
The Workbook_Open() method should do the trick.
-----Original Message-----
Helo,
Can any body tell me how can a macro be executed
automatically when
ever i open a workbook.
Thanks in advance
.