Apple Address Book database definition and linked programs information.
How to open ABCDDB Files
File extension abcddb is used by following file type(s):
|file type description:|
|Apple Address Book database|
|The ABCDDB file extension is associated with Apple Address Book, an address book for Apple's Mac OS X computers with many syncing features that are integrated into rest of the OS.
The .abcddb files contain stored contact address book data in SQLite format.
that open abcddb files:
|Mac OS X Address Book (Contacts) (Apple OS X)|