2.xp3Viewer(xp3 file unpacking tool) is dedicated to unpacking games of kirikiri2 engine (games with package file suffix xp3). Simple operation. Drag the game startup icon to the xp3viewer.exe icon, and then drag the file you want to unpack to the program window after startup. In order to understand package extraction, CG, music and other things, you need to use XP3Viewer (but this software seems to only support the game of kirikiri2 engine), crass and other tools. Some game packages are specially encrypted, which xp3viewer can't unlock (such as Zhihu FD). Almost omnipotent krkr2 system extraction tools are basically used by Teak Club, and other games, such as Ai Nv and Xia Xue, are also used.