Microsoft Teams EEA (Exploratory Experience Add-on) is a free add-on that allows users without a Teams license to explore and experience Microsoft Teams’ core functionalities. This add-on provides users access to features such as chat, file sharing, meetings, and collaboration tools, helping organizations trial Microsoft Teams before committing to a paid subscription. It is typically available for a limited time and designed to give non-licensed users an introduction to Microsoft Teams' capabilities within an organization.