If you want to export PST Office 365 admin center, you can try the Advik Office 365 Backup Tool. It lets you save your Office emails in different formats like PST, MSG, CSV, PDF, and more without changing the original data. You can also use it to move your emails to other accounts like Gmail, Yandex Mail, Hotmail, IMAP, Zoho Mail, and more, along with attachments. The tool also helps you keep your folder order just like in the original files. It works smoothly on all Windows versions, including Windows 10, 8.1, 8, 7, Vista, and XP.