Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
If you have paid for a subscription to Microsoft 365 or an Office licence, log into your Microsoft account on this link, you should be able to download and install Office from there.
https://account.microsoft.com/services/
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If you are unable to do that, please provide a screenshot of any error you see indicated.
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Also, what Office licence or subscription do you have, is that Microsoft 365 Basis, Personal or Family or if it is a standalone version, is that Office 2024 Home, Standard or Office Pro Plus.