Saved game file created and used by Sid Meier's Railroads!, a real-time strategy train engine game; stores game progress data, which includes train, depots, tracks, cities, game difficulty, and game scenario.

Unless you choose a different location, saved games are automatically saved in the following directory: [install directory]\Sid_Meiers_Railroads\Saves. If you double-click the file it will launch the application and load the saved game.