Step. I. Login to the webmail interface, At the top of the page, click on 'Address book' icon.
Step. II. Address book page appears with a list of address and other management features.
Step. I. Scroll down to 'Address book import' form. Choose file from your PC by clicking on 'Choose file' (1) button. Select 'Input character set' (2) (usually ISO-88591) and Field delimiter (3). If you are using custom field delimiter, specify it in the 'Custom field delimiter' (4) text box. You can specify Text delimiter (5) or a custom delimiter for text (6). Finally click on 'Import CSV File' button.