Not unless you have a backup of your data before the import.

Signature
Sue Mosher, Outlook MVP
Author of Configuring Microsoft Outlook 2003
http://www.turtleflock.com/olconfig/index.htm
and Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx
> In 2003 Office Outlook I was trying to export a contacts folder and it
> exported incorrectly (without addresses). So when I tried it again I
> accidently imported instead of exporting and I now have a list of
> Address-less contacts. Is there any way to recover what I've done?