No need to export and import anything. Just use the pst-file directly via;
File-> Open-> Outlook Data File...
It is recommended to recreate you mail profile though after the downgrade.
For this see;
http://www.howto-outlook.com/faq/newprofile.htm
--
Robert Sparnaaij [MVP-Outlook]
Coauthor, Configuring Microsoft Outlook 2003
http://www.howto-outlook.com/
Outlook FAQ, HowTo, Downloads, Add-Ins and more
http://www.msoutlook.info/
Real World Questions, Real World Answers
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"mnsac" <(E-Mail Removed)> wrote in message
news:24306616-6FCE-4D83-88AB-(E-Mail Removed)...
> Hi. I am switching from Office 2007 to 2003. If I export all folders in
> .pst format, will I be able to import that into 2003 seamlessly? lol. I
> have
> never had issues when "upgrading" doing it this way, but "downgrading" is
> a
> new issue to me.
>
> Thanks in advance for your help!