Microsoft Word is a full-featured word processing program for Windows and Mac operating systems.

Microsoft Excel is a spreadsheet program that features calculation, graphic tools, pivot tables, and macro programming language support for Windows and Mac operating systems.

Microsoft PowerPoint is a presentation program for Windows and Mac operating systems.

Microsoft OneNote is a free-form note-taking program for Windows and Mac operating systems

Microsoft Outlook is an email program for Windows and Mac operating systems

Microsoft Publisher is a desktop publishing program for Windows operating systems

Skype for Business is an instant messaging client and unified communications application.

Microsoft InfoPath is a program that allows you to design, distribute, complete, and submit electronic forms. You may choose to add the InfoPath Form Web Part to a SharePoint Online site.