Steps to Import Contacts from a Comma separated values (.csv) File in Windows Live Mail

Step 1: Open Windows Live Mail, and open your Contacts.
Step 2: Click on the Import ribbon button, and click on the Comma separated values (.CSV) option
Step 3: Click on Browse.
Step 4: Navigate to where you saved the exported .csv file from step 4 in OPTION ONE above, and click on Open.
Step 5: Click on Next.
Step 6: If you would like to add or remove any of the fields to be included when importing the contacts, then double click on any listed field and check (add) or uncheck (remove) the Import this field box, and click on OK.
NOTE: Repeat this step for any field you would like to add (check) or remove (uncheck).
Step 6: When finished, click on the Finish button.
Step 7: Your contacts have been imported into Windows Live Mail.