Microsoft Teams is a chat-based collaboration platform part of Microsoft 365 that allows for messaging, file sharing, and video conferencing. Key features include threaded conversations, ability to like and save messages, integrating documents and conversations, mentioning other team members, using emojis/GIFs to express yourself, private and group chats, sharing files, joining online meetings, screen sharing, and scheduling future meetings. It also allows for adding tabs and connectors to integrate other tools. Bots can help users complete tasks. Microsoft Teams requires Microsoft 365 subscriptions and works across Windows, Mac, mobile, and web platforms.