You CAN NOT EXPORT your Minted Address Book!
I used Minted for Holiday Cards after cardstore went away.
"Can I print or export my address book?
You have the option to print your contact list from your Address Assistant. You can select your entire address book, or just include certain contacts.
We are unable to support exporting your Address Assistant as a file format (.xls, .xlsx, .doc, .docx etc.)"
FAIL!
Now it's over to Shutterfly.