The Filer module provides the functionality to display a graphical representation of the filing system structure. It uses standard filing system calls and thus will work with any filing system.
Other specific filing systems (such as ADFSFiler) cooperate with the Filer module by issuing the command *Filer_OpenDir when their icon is clicked. This enables the Filer to open the appropriate directory display window. They also provide other non-generic operations such as *Format and *Verify operations are provided by the ADFSFiler.