Notes about the FL file extension:
Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries, unused processes and other unfavourable system settings to identify slowdown issues.
The FL file type is primarily associated with 'Flash' by Adobe Systems Incorporated. This file only opens with Flash 8 and is used to save the data of any files created with Flash 8 before exporting them as the file associated with the genre of the file (i.e., images and movies).