Import Telephone numbers from CSV file into Active Directory 2008

HI,

We have a Windows server 2008 with 1000 users in AD. I would like to add telephone number & mobile number from CSV file into AD. I have created csv fie as below. Attributes of Mobile is mobile & General/Telephonne Nunber attribute i used is telephoneNumber.

I am getting following error when i tried to import csv file in AD.

C:\>csvde -i -f chetan.csv -j c:\

Connecting to "(null)"

Logging in as current user using SSPI

Importing directory from file "chetan.csv"

Loading entries.

Add error on line 2: Already Exists

The server side error is "The specified account already exists."

0 entries modified successfully.

An error has occurred in the program

Csv FILE:

Kindly Advise.