How many panes does a window explorer have?

Windows Explorer, now known as File Explorer in recent versions of Windows, typically has two main panes: the navigation pane on the left, which allows users to browse through folders and drives, and the main pane on the right, which displays the contents of the selected folder. Additionally, users can choose to open multiple File Explorer Windows, allowing for more panes if needed for multitasking. Some versions may also include a details pane or preview pane for additional information about selected files.