If you launch multiple files by double-clicking their shortcut icons, or via the "Open" menu in Excel, the files will run simultaneously in one Excel window.

While there is a way for you to open two Excel workbooks at the same time, you can also open multiple spreadsheets in separate windows. Learn how!

Windows 11 has quietly added a new feature in the last couple of months: a tabbed File Explorer interface. It makes moving and copying files so much simpler.