Default Steam Path: C:\Program Files (x86)\Steam\steamapps\common\eFootball PES 2021\download
This is the unique identifier. The base game might have files named Dt80.cpk . If a modder simply named their file Dt80.cpk and you tried to install it, it would try to overwrite the original game file. This is risky and bad practice. Dt80-200e-x64-cpk Pes 2021
Load PES 2021. Start an exhibition match. Look at the scoreboard. If it has changed, you succeeded. If the game crashes at the "Kick-off" loading screen, you have a version conflict (e.g., you used a PES 2019 dt80 file on PES 2021). you have a version conflict (e.g.
Navigate to your PES 2021 installation directory. Dt80-200e-x64-cpk Pes 2021
This is where most users fail. PES 2021 uses a DpFileList.bin to decide which CPK files load.