The file dt20_win.cpk is a standard system file for on Windows that primarily contains the game's interface text and language data . How to Use dt20_win.cpk
Select your DLC version (check the Konami official site for the latest data pack updates). Ensure dt20_win.cpk is checked in the list. Click . Key Utilities & Tools PES 2017 DPFileList Generator Guide | PDF - Scribd
: Copy the newly downloaded dt20_win.cpk into the download folder.