If purchased directly from the Microsoft Store, you can sign in, go to your Order History , locate the Office 2010 purchase, and select "Install Office" to view the key.
Keep in mind that using a product key for someone else or from an unauthorized source is against Microsoft's terms of service. ms 2010 product key
If you bought a physical copy, the key is typically printed on a sticker attached to the card or disc case inside the box. If purchased directly from the Microsoft Store, you