In order to export your Gmail contacts back to your original account, I would suggest you used a CSV file:
Once you are logged in your Gmail account, click Google Apps > Contacts
In Google Contacts, select More > Export > Contacts
Depending on the destination account you have, you can select the type of file you want to export the contacts in.
Once you have your CSV, you can import it in your destination account.
If you need further guidance please reply with the domain of the destination account you want to import to and I´ll be happy to help!