Newer version available (macOS 11 Big Sur+)
Exporter for Contacts

Exporter for Contacts 1

The most popular Mac app to export your Address Book contacts to CSV, Excel and other formats

GET     macOS 10.9+  ·  1.13.2 (2021-04-25) ·   4.7

Access to contacts denied

Starting with OS X 10.8 Mountain Lion, you must explicitly allow an application access to your contact database. Apparently, you accidentally have denied Exporter for Contacts to access your contacts — as a consequence, the app cannot work at all. To grant access again, do this:

Make sure that Exporter for Contacts’ checkbox is checked.
Make sure that Exporter for Contacts’ checkbox is checked.