Simplify Excel file sharing and exporting. Learn how to collaborate in the cloud, email files, and manage formats with ease.

If you back up both your data and your encryption key, your files should remain safely accessible to you (and only you). Open ...

Learn how to use passkeys on Windows and Mac computers without cameras or fingerprint readers. Discover secure authentication ...

Microsoft's new feature makes it easy to open shared files on Android anonymously without having to log in to your account.