.FWD File Extension
File TypeRollerCoaster Tycoon 3 Fireworks Display File
What is an FWD file?
Custom fireworks display created by RollerCoaster Tycoon 3, a theme park simulation game developed by Atari; contains instructions for displaying a custom fireworks show within the game including what types of fireworks to use and when to use them.
FWD files are created in-game from the Fireworks MixMaster tool. They can also be imported by copying files to My Documents\RCT3\Fireworks\ and then opening them like any other saved display in the game.