Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hello
Did you buy Office 2024 Home from Microsoft or a third party?
It sounds like you have a 25-digit code? If so, you need to redeem the code first so the license can be redeemed into your account. Redeem instructions can be found here: https://support.microsoft.com/en-us/microsoft-365-activation-licensing/office-install/where-to-enter-your-office-product-key
Once you have it redeemed, you need to remove the old license on your macOS first. Assuming your macOS is up to date?
Please uninstall your Office apps. To uninstall, you move all Office apps, like Word, Excel, PowerPoint, Outlook, Teams to trash bin.
Please use the instruction here: https://support.microsoft.com/office/how-to-remove-office-license-files-on-a-mac-b032c0f6-a431-4dad-83a9-6b727c03b193 Download and run the license removal tool to clear any old cached license.
Then you can reinstall:
Please go to https://account.microsoft.com/services
Sign in to the Microsoft account you redeemed the code to.
You should then see your Office product listed. Find the option to download and install.
===========
If your macOS is not the most recent 3 versions, please tell me what OS version you have. We might have to adjust the instructions above, because some older versions might need different installation instructions.