I have a Contacts archive file (.abbu) that I created in 2016 by following the instructions of AppleCare when I had called about some issue with iCloud.
I would like to open the file and look at some of the contacts but don’t want to replace my current Contacts database with it, so I created a Test account (10.13.6).
When I log in to the test account and click Contacts > File > Import > Replace All, no contacts are imported. In the Contacts window it just says, “No Cards.”
I know there is data in the file because I can open it in BBEdit and read some of the information, although most of it is gibberish.
I don’t think the problem is the file itself because I get the same results with Contacts archive files I export from my current setup.
AppleCare says they only support .vcf imports, although that seems to be contradicted by this Apple support page, under “Import from an archive file (.abbu)”:
Any ideas on how to import this file, or perhaps convert it to a .vcf format?