The Filesystem Browser

The filesystem browser lets you browse your hard disks and network folders for archives. All other files are filtered out. To open an
archive from the file browser simply double click it. It will open the archive in the same window, so if you already have an
archive with changes opened, you will be asked to save your changes first.

To open the filesystem browser select Show/Hide Filesystem Browser from the View menu or press ⌘ B on your keyboard.