Wikimedia
Wikipedia: Microsoft Outlook
Add your knowledge about Microsoft Outlook to the Encyclopedia Wikipedia. There are many links, especially about the history of various versions of Outlook and the technical operations aspects.
Goodwill
Gcf Global: Excel 2016
A website with 33 links plus a quiz on how to use Microsoft Excel 2016. Topics include Excel 2016 Basics, Working with Cells and Sheets, Formulas and Functions, Working with Data, Doing More with Excel, and Extras.
Goodwill
Gcf Global: Office 2016
Links to tutorials on the Microsoft Office 2016 suite including Excel 2016, Word 2016, PowerPoint 2016, and Access 2016.