You can import PST files into Gmail with a Gmail Workspace account or use a workaround to sync your data. We show you how to import a PST file into Gmail for personal and business accounts.

Mac OS X only: Freeware program Address Book to CSV Exporter streamlines the process of importing all of your Address Book contacts directly into Gmail.

So your file should look like “Facebook.csv” or something similar. Import into Gmail Now the magic happens. Open up Gmail, and click the Contacts Link.

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.