Once files have been uploaded you can then use them on your web site. Certain files and images (such as your logo or web site style sheets) will be included in your templates, but most other files you will add to individual pages on your web site through the What You See Is What You Get (WYSIWYG) editor.
The Recite WYSIWYG editor integrates directly with the File Manager, meaning you can browse files through it, as well as uploading files and creating folders.
For further details on doing so, refer to the WYSIWYG Editor Guide chapter.