.fl FLTK Fluid file
Documents & office
| MIME type | application/x-fluid |
|---|---|
| Description | FLTK Fluid file |
| Acronym | FLTK – Fast Light Toolkit |
| Category | Documents & office |
| Based on | text/plain |
Frequently asked questions
What is a .fl file?
A .fl file is a “FLTK Fluid file” (MIME type application/x-fluid). FLTK stands for Fast Light Toolkit.
How do I open a .fl file?
With an office suite: LibreOffice (free, Windows/macOS/Linux) opens most document formats, as do Microsoft Office or the vendor’s own app.
How can you tell a genuine .fl file?
No fixed signature at the start of the file is registered for this format; it is recognised mainly by its extension. On Linux and macOS, file --mime-type example.fl shows the guessed type.
Which format is .fl based on?
Technically a .fl file is a subtype of “Plain text document” (text/plain), so programs for that base format can often read it too.
Which MIME type belongs to .fl?
The MIME type is application/x-fluid. In the Apache web server: AddType application/x-fluid .fl; in nginx: types { application/x-fluid fl; }.