How to Import:
2. Go to the Gear icon in the top right and click on it.
3. Once it opens click on "File"
4. Then you will see: Import "Start Import"
5. Then you will Import from a selected file: "Outlook Data File (.pst)" Choose the appropriate files you want to important.
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How to Export:
2. Click on the Gear Icon in the top right.
2. Select General settings, then Privacy & Data, then Export Mailbox.
3. Then choose the files you want to Export and save them as (.pst) files.