These files are for FoxTelem, the AMSAT software by Chris Thompson AC3CZ/G0KLA for decoding and displaying Fox-1 series CubeSat telemetry. To use FoxTelem with the CubeSat Simulator, you will need to download the 1.09m version from: https://www.g0kla.com/foxtelem/downloads/test/ Install and run FoxTelem per the instructions. If version you downloaded has a directory of the same name here, download all the files in the correct version number directory and put them in the FoxTelem spacecraft folder.Run FoxTelem, then go under Spacecraft/Add and select the .MASTER files to add the CubeSat Simulator to FoxTelem.