This is a program that is for small businesses and families who want to get classic emails and apps for small business. The programs that are included on with this toos are PowerPoint, Outlook for Windows 10, Excel, and Word.
The way that you upgrade to the Office 2019 is to open any of the Office 2019 programs or applications such as Excel and Word. You then choose the file that you want or account. When you get to the product information area you make a notation of the version in the about section.
It is worth getting the Office 2019. There are different versions available. The commercial version, of Microsoft Office 2019 was released for Windows and Macs