: Stands for "Decrypted." This is crucial for emulation; it means the game files have been processed so they can be run directly on emulators (like Citra or yuzu/Ryujinx ) without needing private console keys.
: Once extracted, you will likely see a single large file. POKS-USA-(RETAIL)-DecrTD-Ziperto.part1.rar
: Right-click on Part 1 only and select "Extract Here." The software will automatically pull data from the other parts to recreate the full game file (usually in .3ds , .cia , or .nsp format). : Stands for "Decrypted