Hello up2you2,
Thank you for using Microsoft products and posting to the community.
If you want to send documents as faxes in Microsoft 365 Word, then you need to install Windows Fax Printer Driver or Fax Service to send faxes. For this, you can refer to the following steps to enable Windows Fax feature in Windows 11.
- Navigate to the Windows 11 Settings > Applications > Optional Features page.
- Click the View Features button next to Add an Optional Feature.
- In the dialog box that appears, scroll down the list to view the Windows Fax and Scan entry.
- Check the check box next to the entry and click the Next button.
- From here, click the Install button to install Windows Fax and Scan.
- Once the installation is complete, restart your computer. When you want to send a Word document as a fax, you can click File - Print - Printer - Fax
I hope the above information will be helpful to you. Feel free to post back if you need further assistance.
Sincerely
Mavis - MSFT | Microsoft Community Support Specialist