Based on the naming convention typically used by the site , the file "POKX-EUR-DecrTD-Ziperto.rar" contains a decrypted ROM for a Pokémon game, likely for the Nintendo 3DS . Breakdown of the Filename: POKX : This is a common abbreviation for Pokémon X .
Inside the .rar archive, you will typically find a single file. This file is a digital copy of the game cartridge that can be loaded into an emulator to play the game on a PC or mobile device.
: Indicates the European (PAL) region version of the game.