By default FILEman comes with two built-in modules. A module that shows either; a list, or, a gallery of files, and a module that shows a list of folders. Depending on your viewing device you can find them either on the bottom or on the right of all FILEman pages.
FILEman files module
Check out the module documentation for more information and settings
FILEman folders module
Check out the module documentation for more information and settings