Just open https://portal.office.com and login with email and password, then download your office 2019 and install it. You must set the password first time you login.
- Access to offline & online Office Applications: Word, Excel, PowerPoint, 1 TB Cloud Storage!
- Unlimited re-installations, lifetime
- 5 Device activation [Windows/Mac/Tablets/Phones]
- Download original installer from office website
Enjoy lifetime office!