Because .pck is a proprietary container, standard extraction tools like WinRAR or 7-Zip will not work. You will need:
Sometimes the game is set to a language you don't have installed. sounds-eng.pck assassin 39-s creed 2
Understanding the Assassin's Creed 2 sounds-eng.pck File: A Guide to Game Audio and Troubleshooting Because
Thus, sounds_eng.pck is the sound of a machine dreaming. It is the hum of a fictional supercomputer trying to make the alien textures of the past palatable to a 21st-century mind. The file is a lie, but it is a beautiful, functional lie—a translation that lets you feel the truth underneath. It is the hum of a fictional supercomputer
Audio tracks for the heavily scripted, dramatic cutscenes.
Navigate to your main game directory (e.g., C:\Program Files (x86)\Steam\steamapps\common\Assassins Creed 2 ). Look for a folder named SoundData .