Hi
If you want to import VM products from other website to new one, you can use phpMyAdmin to export the respective VM tables and them import on the new database.
I strongly recommend that you make before some tests on local installation and naturally, backup your new website.
Very important.
After export the VM data to sql file, you must rename the database prefix on all instances to the prefix of your new database. Them save the sql file and import to the new database using phpMyAdmin.
Cheers