Save them in Outlook's native format: a Personal Folders file.
Open that file in the other installation of Outlook.

Signature
Russ Valentine
[MVP-Outlook]
>I tried sending my contact list from my work e-mail to my home e-mail by
> sending them as a V-Card. But, since I have quite a few contacts is there
> a
> way to open them all up at once and save them into my home address book
> rather than saving them individually?