Hi ChrisTre
Thanks for your response.
It seems that the installation of Excel components from Office 2021 will not launch successfully, so the manual uninstall steps may not fix the problem,
Preliminary determination that this problem comes from your system. There are many reasons for the problem of the system. Please try to overwrite your Windows 11 installation and follow the steps below:
1-Download and run the Media Creation Tool.
2-Now select the "Upgrade this PC now" option.
3-The installer will prepare the necessary files, so you need to wait.
4-Select Download and install updates (recommended) and click Next.
5-Wait for the update to download.
6-Follow the on-screen instructions. On the Ready to Install screen, click the Change what to keep option.
7-Select Keep personal files and apps and click Next.
8-Follow the on-screen instructions to complete the upgrade process.
Note: Although this repair installation can solve most problems, in order to avoid your data loss, we recommend that you back up some important data.
Keep us posted.