.RPX File Extension
File TypeWii U Game
What is an RPX file?
An RPX file is an executable game file run by the Wii U console or Cemu emulator to play games such as Mario Kart 8 or Super Mario Maker. It contains all the files needed to run the game such as the game ROM and texture files. RPX files are large in size due to the amount of files stored within them.
Cemu is a program that allows you to play Wii U games in Windows. In Cemu you can load an RPX file to play a Wii U game. Select cemu_1.7.0\Mario Kart 8\code.and navigate to the location of your RPX file. The file is located in the "code" folder of the game directory. An example directory is