Qmmander

Qmmander is a free Windows application to explore the files on your computer in two navigation panels, which makes it easier to transfer files and get an overview of your folder hierarchy.

There are a few different views for the list of files: list, details, small icons, and big icons, plus a view from which you can see the directory tree. You can also change the layout of the two navigation panels.

The file explorer supports tabs, and it has an integrated terminal window, calculator, and connection to remote file servers.

For all these reasons, Qmmander is a great alternative to the default Windows file explorer.