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Best Answer: With the all-new Yahoo Mail, there is no option to import pst files. However, in the Yahoo Mail Classic the only thing you can import are contacts in the address books. Here are the steps to do import/export of contacts: 1. Choose a program to import contacts from: Yahoo! (.CSV file)
Step 3. Sign in to your Yahoo Mail account and open the email that you want to save to a flash drive. Step 4. Click the Show Images link at the top of the mail if the message contains blocked images that you want to save with the email.Step 5. Click the More button and then select Print from the drop-down list.lick the Preferences tab and then select Import / Export below the name of your Yahoo account. Step 6. Click All folders next to Source in the Export section and then select the folder containing the emails that you want to copy to a flash drive.