OneDrive is a software application that allows you to store and access your files securely in the cloud. OneDrive is part of the Microsoft Office suite, which also includes Word, Excel, PowerPoint, and other productivity tools. You can use OneDrive on your PC, Mac, mobile device, or online through a web browser.

Some of the features of OneDrive are:

1. You can create and manage digital notebooks, which are collections of notes, drawings, clippings, and other multimedia elements.
2. You can share your files with others inside or outside your organization and work together in real-time on Office documents.
3. You can use OneDrive Files On-Demand to view and interact with your files without downloading them to your device.
4. You can use data validation, conditional formatting, and what-if analysis tools to ensure the accuracy and quality of your data.
5. You can use Files Restore to recover your files to any point over the past 30 days.
6. You can use modern attachments to send OneDrive files as links or copies in Outlook.
7. OneDrive is widely used for various purposes such as education, business, personal, and more. OneDrive can help you store, organize, protect, and access your files from anywhere.

Learn more about Microsoft OneDrive: https://support.microsoft.com/en-us/office/video-what-is-onedrive-personal-a7707a86-7a07-4147-839a-40928b7f1d2c