Office 2019 Home and Business for MAC

Activation of the key and download of the distribution occurs on the official website setup.office.com or redeem.microsoft.com
The key is tied to your MS account and you can always use it.
Composition of the Microsoft Office 2019 Suite for Home and Business Mac:
Microsoft Word 2019
Microsoft Excel 2019
Microsoft Outlook 2019
Microsoft PowerPoint 2019
Microsoft OneNote 2019

Activation on the website https://setup.office.com/