In Mac OS X 10.4.2 or later, Address Book might fail to import information from a .txt or .cvs file if the file contains a line break. No alert message appears when this happens, but the data from the file will not appear in Address Book.
Where do line breaks come from? Here's example: In Microsoft Excel, you can insert a line break by pressing Control-Option-Return.
To resolve the issue, open the file in a text editing application or the application that created the file, find and remove any line breaks, save the file, and then import it again into Address Book
This document will be updated as more information becomes available.
Important: Information about products not manufactured by Apple is provided for information purposes only and does not constitute Apple's recommendation or endorsement. Please contact the vendor for additional information.