You can find a nice little program in Mac App Store called AB2CSV from Antonio Lore that has been designed exactly for the purposes of abcddb to csv conversion, i.e. export of Apple Address Book database files to CSV format.
Home > Search converters: abcddb to csv
Conversion of abcddb file format to csv file format beta
Search for abcddb to csv converter or software able to handle these file types.
Convert Apple Address Book database to Comma Separated Value file.
We have found one software suitable in our database for this conversion.
Apple macOS / Mac OS X software 
- convert abcddb to csv on OS X
AB2CSV
A small utility used to convert Mac Address Book to CSV format
File extension | Convert | Open | Save | Edit | Create | Import | Export | Extract |
|---|---|---|---|---|---|---|---|---|
Convert from abcddb file | No | No | No | No | No | Yes | No | No |
to csv file | No | No | No | No | No | No | Yes | No |
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.
Additional links: Open abcddb file, Open csv file
ABCDDB
Files with abcddb suffix are almost always contacts databases from Apple Address Book (Contacts) management software macOS / OS X.
CSV
Files with csv extension are text data files in common Comma Separated Value file format. Simple text file with values divided by comma, often used as an import/export format.
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