You can import contacts and address books that are saved in a comma-separated (.csv) text file format.

1. Go to Preferences > Address Book.
2. Click Browse to locate the .csv file to import.

3. Click Import. Depending on the size of the file, import may take a few minutes.
4. When Import is complete, the Status Box shows the number of contacts successfully imported.

All contacts come in alphabetized by last name. You can edit the contacts list to change this.