File formats to which FL Studio can save/export a project. They are all accessible from the Save and Export commands in the File menu.
Choosing to export/save to any of these files formats (Wave, MP3, MIDI) opens the Rendering dialog. Wave files and MP3 files export the whole audio output of your song.
This does NOT include any sound produced by MIDI! To export MIDI data, you can export to a MIDI file format instead.