Choose a location and name for your backup file, and then click Finish. If you want to ensure that nobody has access to your files, use the encryption and password settings, and then click OK . If you need to load the backed up contacts into Outlook later

Choose to export all contacts or only contacts from a specific folder, and then select Export. At the bottom of the page, select Save to save "contacts.csv" in your default Downloads folder. Or, select the arrow next to Save and select Save as .

Training: In Outlook, you can export your contacts into a .pst file to make them portable and easier to move. Watch this video to learn how. Manage appointments, plans, budgets — it’s easy with Microsoft 365.