Cannot activate Office 2016 on a Microsoft Surface Pro X

Office is not currently supported here on QnA. They're actively answering question in dedicated forums here.

https://answers.microsoft.com/en-us/msoffice/forum/msoffice_install

https://social.technet.microsoft.com/Forums/en-US/home?category=officeitpro

https://techcommunity.microsoft.com/t5/office-365/ct-p/Office365

--please don't forget to Accept as answer if the reply is helpful--

Regards, Dave Patrick ....
Microsoft Certified Professional
Microsoft MVP [Windows Server] Datacenter Management

Disclaimer: This posting is provided "AS IS" with no warranties or guarantees, and confers no rights.

Hi,

Something here might help:

Activate Office
https://support.microsoft.com/en-us/office/activate-office-5bd38f38-db92-448b-a982-ad170b1e187e

You might also want to reach out to the experts in the dedicated "Office 2016 activation" forum below:
https://answers.microsoft.com/en-us/msoffice/forum/msoffice_install-mso_win10-mso_2016

Best regards,
Leon