Step 1: Add your Gmail account to Outlook. When you're finished with this step, you'll see your existing Gmail messages in Outlook. You can use Outlook to receive, read, and send new messages from your Gmail account. You can also continue to use your Gmail account as before through the Gmail web site.My Account.hoose Export to a file, and then choose Next. Choose Outlook Data File (.pst) , and then choose Next. Select the account you want to export by choosing the name or email address of your Gmail account, and verify the Include subfolders box is checked (this ensures all your email is copied), and then choose Next.