Good day, Bebop99.
Thanks for reaching out to our Microsoft Community Forum.
We understand that the public preview of Python in Excel isn't working for you. This is despite signing up to the Microsoft 365 Insider Program and using the latest build of the Beta Channel of Microsoft 365.
As explained in the article below, "Python in Excel is gradually rolling out to Public Preview for those in the Microsoft 365 Insiders program Beta Channel. This feature will roll out to Excel for Windows first, starting with build 16818, and then to the other platforms at a later date."
Emphasis on the word "gradually" by the article's author. This article when first published back in August actually had this to say:
In any case, here are a few things you can try to troubleshoot the issue:
- Make sure that you have the latest version of Excel installed. You can check for updates by going to File > Account > Update Options > Update Now. Refer to link below.
- Try running Excel in safe made using the steps below and see if that resolves the issue.
- Check your antivirus software to make sure that it's not blocking Python in Excel from running and as an additional step apply the clean boot procedure in the link below.
- Since you've done a quick repair how about a full repair as described in the link below.
- On the off chance that none of the suggestions above work, it might be time to manually uninstall Office and then reinstall it again. Refer to links below.
- https://support.microsoft.com/en-us/office/manually-uninstall-office-4e2904ea-25c8-4544-99ee-17696bb3027b
- https://support.microsoft.com/en-us/office/download-and-install-or-reinstall-microsoft-365-or-office-2021-on-a-pc-or-mac-4414eaaf-0478-48be-9c42-23adc4716658
Feel free to reply to this thread if you need further clarification.
Sincerely,
Glenn Rue
Forum Moderator
Microsoft Community