Office Setup came with a product key, you enter your product key on one of the Official websites listed as office.com/setup. After you enter your key, you can download and install Office, or you can renew your Office 365 subscription.
Download and Install: Office Setup Product Key
Office Setup Product key is the unique 25 digit code that Microsoft office provides with setup office in your Computers/Laptops. This product key is a set of alphanumeric key that is required to activate any of your Office Setup version. The key ensures that each product is legally purchased and used.
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