Steps to export your ProtonMail contacts or address book from ProtonMail application. Users can easily take backup of ProtonMail Contacts in CSV file.
Exported CSV can be further imported into Cloud email services like Gmail, G Suite, Office 365, Yahoo, AOL, WorkMail, GMX etc. Further you can also convert exported ProtonMail contacts CSV to vCard files using CSV to vCard tool and then you can also import these converted vCards into Mobile phone.
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