Office Mix is a free add-in for Microsoft PowerPoint that may be used to create interactive online classes. By including audio, video, and other multimedia components to your PowerPoint slides, Office Mix is a free add-in that enables you to make interactive online lectures. It also has resources for designing tests and polls, as well as for monitoring the involvement and development of students. You'll need a Microsoft account, PowerPoint 2013 or later installed on your computer, and Office Mix to utilize it. The Office Mix add-in can be downloaded and installed through the Microsoft Store after you have these. Once it has been set up, you may use it to make interactive lessons by including multimedia components, tests, and quizzes in your slides, then posting your work online. Office Mix is a potent tool that can assist you in producing dynamic and engaging online classes that can enhance student learning.