If the Import/Export option is greyed out in Outlook 2016, it usually happens due to restrictions set by your Exchange administrator or a corrupted Outlook profile. In such cases, you won't be able to move data directly. A reliable alternative is to use a professional MacArmy PST Converter tool, which allows you to export, import, or convert Outlook PST files without depending on Outlook's built-in features. With this method, you can easily migrate your emails, contacts, calendars, and attachments securely, ensuring complete data integrity even if Outlook's Import/Export function is unavailable.