Online Services Tool refers to various web-based tools and services offered by Microsoft that help with tasks like managing emails, sharing files, and collaborating online. These services include applications like Outlook for email, OneDrive for cloud storage, and Microsoft Teams for communication and teamwork. They are accessible through a web browser, allowing you to work from anywhere with an internet connection. Microsoft Online Services make it easy to stay connected and productive, providing tools for both personal and professional use without needing to install additional software on your device.