This specific file, , is a package containing all the downloadable content (DLC) for the European version of Super Smash Bros. for Nintendo 3DS . It is hosted on the enthusiast site Ziperto and is specifically prepared for use with emulators like Citra. File Breakdown
Once you have extracted the file, you will likely find files inside. Open the Citra emulator. SSB-EUR-(DLC)-Decrypted-Ziperto.rar
: A compressed archive format. You will need a tool like 7-Zip or WinRAR to open it. What is Included? This specific file, , is a package containing
: A wide variety of outfits and hats for Mii Fighters based on other Nintendo and third-party franchises. How to Use with Citra This specific file