Just copy the contents of one folder into the other.
BTW, this is one of many reasons we advise against importing and exporting
as a method for transferring data. Next time just create a PST file with
your data and open it in the other installation.

Signature
Russ Valentine
[MVP-Outlook]
>I exported Contacts from our network so that I could import them into my
> Contacts on my laptop and use when out of the office and off network. When
[quoted text clipped - 3 lines]
> separate directory. Is there any way I can merge the two contacts into
> one?