Why aren files without extensions visible when the visual filter is set to “*.*”?
A. The default visual filter that allows all files and folders to be shown in a pane is “*”. This is not only shorter to type but it is also more accurate. The wildarg pattern “*.*” strictly corresponds to file names that contain a dot (‘.’), so a name like “Untitled” without an extension (and hence lacking the dot) is not matched by the said pattern.