FLT file format is used by OpenFlight software application. This application is used to design 3D models.

The software is used to design a 3D object as a real time model. The user is can then select a specific angle side for camera and save that side for model visualization. This camera side view for a specific model is saved as FLT file format and is known as OpenFlight Scene Description. The FLT saves all the attributes of the model which are used to define the model properly. This file format also stores the window angle from which the user is seeing the model.