You can import contacts
from other address book like windows address book or outlook contacts.
Import from Windows Address Book or Outlook Express
Address book:
Click "File" on the menu bar and select "Export"
and then select "Other Address Book...".
Highlight "Text File (Comma Separated Values)" and click "Export".
Click "Browse" button Choose a directory to save the file to and enter a name and
click "Save".
Then click "Next".
Check mark all the unchecked fields where it asks Select the fields you wish to
export.
Click "Finish" and your CSV file will be created.
Import from Microsoft Outlook:
Click "File" on the menu bar and select "Import
and Export...".
Highlight "Export to a file" where it asks what action to perform and click "Next".
Select "Comma Separated Values (Windows)" as the file type to create and click "Next".
Select "Contacts" as the folder to export from and click "Next".
Choose a directory to save the file to and click "Next".
Click "Finish" and your CSV file will be created.
From the address book main window select "File"=>"Import"
Select the desired group
from "Import To" in which you want to import contacts.
Click "Import External Contacts" below and select the file you created and click
"Open". Imported contacts will be displayed in the window. Now you can also change
the destination group by right clicking on any item and change its group.
Click "Import Contacts".