.REF File Extension

File used by Microsoft Train Simulator, a program used to simulate trains and play the role of locomotive engineer or passenger; contains a reference to shape file settings, including the .S shape filename, shadow properties, class, alignment, and description.

REF files store a list of shapes that can be imported into a simulation.

File created by IDRISI Taiga, a GIS imaging application; stores geographic reference information so that .RST images can be projected according to specific unit measurements; can be used for multiple raster images.

Many preinstalled REF files are located in the \GEOREF\ directory of the IDRISI Taiga installation.