What Does Windows Explorer Mean?
Windows Explorer is the file manager used by Windows 95 and later versions. It allows users to manage files, folders and network connections, as well as search for files and related components. Windows Explorer has also grown to support new features unrelated to file management such as playing audio and videos and launching programs, etc. The desktop and the taskbar also form part of Windows Explorer. The look, feel and functionalities of Windows Explorer have been enhanced with each version of Windows.
Techopedia Explains Windows Explorer
Windows Explorer replaced the programs File Manager and Program Manager that were used before Windows 95. In addition to file management, Windows Explorer also provides shell services as well as manages the desktop, the Start menu and the taskbar.