1. Open Evolution and go to the Contacts section.
2. Press Ctrl+A to select all of your contacts.
3. Right-click on any one of the contacts and select Save as VCard
4. Pick where you want to save the list.vcf file and save.

You’re done! ALL of your contacts are saved nice and tidy into that single VCF file. I cleared my contacts from Evolution and then imported that VCF file and, poof, there they all were.