What is a .ABBU file?
ABBU is an Apple Address Book / Contacts backup archive.
- Did you know
- An ABBU is a full backup of your contacts from the macOS Contacts app.
- An ABBU is really a macOS package bundle - a copied Address Book folder - that holds your contacts as individual vCards indexed by a SQLite database.
- You make one through Contacts with File then Export then Contacts Archive, and restoring it overwrites your whole address book.
- What Analyser reads
- Identify and read more email, calendar and contact files: Outlook for Mac archives (.olm) and templates (.oft), S/MIME .p7m/.p7s, Mozilla Mork stores (.msf/.mab), Eudora/Outlook Express mailboxes (.mbx/.toc), phone backups (.vmg SMS, .vnt notes), XML/JSON iCalendar and vCard (.xcal/.jcal/.xcard/.jcard), LDIF (.ldi) and legacy address books (.pab/.wab/.abbu).
- Depth of analysis
- .ABBU is an identification-grade format: Analyser recognises it from its bytes and decodes the header metadata it carries, rather than opening it in a full viewer. Formats that do get a full viewer are marked "Full" on the formats page.
- Open a .ABBU file
- Drag a .ABBU file onto the Analyser home page (or tap to pick one). It is identified entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.