I have found another reference of an 'old' Monk's page.
Sadly I do not know how to give you a link.
However I can tell you that its title is
Using Win32::OLE and Excel - Tips and Tricks
and it was by cacharbe on Mar 22, 2002 at 04:56 UTC.
This does have useful examples.

In reply to Re^4: Modifying an existing Excel file by merrymonk
in thread Modifying an existing Excel file by toncelli

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