The Export Friends to CSV Facebook application creates a .csv file you can import to your Gmail and Outlook contacts, but the data certainly doesn't travel well.

You'll need to manually add the group lists, however. But you'll want all of the contacts that the group lists refer to in your Gmail contacts before you create your new group lists.

What makes a CSV file unique is the way its content is organized. Here's what you need to know about CSV files and how to use them.