Microsoft Teams launched, quickly becoming the company’s fastest-growing app. The chat-based platform allows users to collaborate on files with built-in Office 365 apps like Word, Excel and PowerPoint; host audio and video conferences; and communicate via group chat, online meetings and web conferencing.
The company rolled out a free version of Teams for non-Office users and expanded into new markets. By the end of 2018, Teams was the most widely used program of its kind.
