Let's say that I save a Pokemon Wi-fi Battle on my fully updated (most recent update) Nintendo 3DS (regular size) and I put that SD card on the computer. Since Pokémon Wi-Fi battles are saved to the SD card, is it possible to decrypt the data on the SD card from the fully updated system with some tool on the computer as a replacement, for example, to a tool like SaveDataFiler's Extdata exporter and importer feature? Or is the ONLY way to decrypt this data using some kind of tool on the 3DS? I'm doing this because I need to decrypt my Pokémon Wi-Fi battles and edit them with Tinivi's BV editor and reimport them so that the battle videos play with a changed background. This would require me being able to re-encrypt the data (using a tool on the computer) so that the SD card can recognize the modified data (which is what SaveDataFiler is capable of doing, but the problem is that it's a tool that only works on a CFW 3DS). To summarize, is the ONLY way to decrypt SD card data using some kind of tool on the 3DS?