The desktop version of Microsoft Office 2019 is now available for Windows and Mac. This non-cloud based product has different options from the cloud subscription versions of Microsoft Office 365 and generally has fewer features than Office 365.
A list of frequently asked questions about Office 2019 may be found here.
DB-Engines.com publishes lists of database management systems (DBMS) ranked by category, including:
Microsoft has provided some web pages that list Excel and Access functions and keyboard shortcuts:
The Microsoft Excel and Access Tech Community sites have additional helpful hints.
Microsoft has released a list of products that will no longer be supported in 2018, including:
A full list can be found at https://support.microsoft.com/en-us/help/4043450/products-reaching-end-of-support-for-2018.
Microsoft has released an updated set of free Technology e-Books on various subjects. The full list can be found here.
Extended Support for Microsoft Office 2007, which includes Excel and other applications, will end on October 10th 2017. This does not include Exchange 2007, which ended support on April 11th 2017.