Sure there is a way.
Don't export.
Instead use Outlook 2003 to create a PST file in "Outlook 97-2002" format.
The option is right there when you use File > New > Outlook Data File...

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Russ Valentine
[MVP-Outlook]
> Is there now way to share files back to Outlook 2000 from 2003?
> If the .pst files are not compatible is ther another file format that will
> allow me to share contacts with an older version of outlook?