How to open Address Book card data .abcdp files
Have you had trouble opening the abcdp file on your computer? What are abcdp files? We explain what they are and recommend software that we know will open them.
What is abcdp file?
Files with the abcdp extension can be found as contacts card data from Address Book (Contacts) included in Mac OS X and macOS.
Address Book card data description
The abcdp file extension is associated with Address Book, a digital address book for Mac OS X (macOS). Since Mountain Lion update the program is now called Contacts.
The abcdp file contains individual contact card data.
abcdp files location:
/Library/Application Support/AddressBook/Metadata
Suggested software to open abcdp file

Address Book (Contacts) for Mac
Contact management tool for macOS