You can import phone books in CSV format.
See page 50 of the Cisco Desktop Administrator User Guide.
http://www.cisco.com/en/US/docs/voice_ip_comm/cust_contact/contact_center/crs/express_7_0/user/guide/cda66ug-cm.pdf
To import a phone book:
1.Make sure the phone book CSV file is formatted correctly, as specified in the section, “CSV File Format” on page 50.
2.In the Phone Book window, click Edit. The Phone Book Editor window appears (Figure 19 on page 48).
3.Click Import.
Any CSV files located in the default folder C:\Program Files\Cisco\Desktop\config are listed. If your file is located somewhere else, click Find folder to browse to its location.
4.Select the file you want to import and then click Okay. The phone book is imported and is added to the list of available phone books in the Current List pane.
The CSV file name (without the CSV suffix) becomes the phone book name. If that name is already in use, you will be asked if you want to replace the existing phone book with the imported phone book. If you do not want to replace the existing phone book, cancel the import, rename the CSV file, and try again.
5.Click OK to close the Phone Book Editor window.
