Importing an Contact List
You can import contact lists that are saved in a comma-separated (.csv) file. After the contacts are imported, they are alphabetized by last name in your contact list.
Go to Preference>Import/Export page.
In the Import>File text box, Browse and locate the .csv file to import.
Select the Type of contact list you are importing. You can select to auto-detect the contact list, or select from the contact lists in the drop-down menu.
Select the Destination contact list to import the contacts or create a new contact list.
If creating a new contact list, click New and enter a name, color and location for the new folder.
Click OK.
Click Import.
Depending on the size of the .csv file, the import might take a few minutes. When the import is complete, the Status Box shows the number of contacts successfully imported.