In the sprawling, intricate world of eFootball Pro Evolution Soccer 2021 (PES 2021) modding for PC, the dt80_300e_x64.cpk file is a name that often pops up on forums like Evo-Web, Reddit, and various patch developer blogs. For the average player, it is just another number in a sea of .cpk files inside the Data folder. For the seasoned modder, however, this particular file represents the beating heart of the game’s live update system and data management.
In-game items not appearing or wrong numbers:
Rollback: To revert to an older version of the game, you may need to delete newer Data Pack files (like 400E or 500E) and regenerate your list using only the 300E file and its predecessors.
Risks and best practices
: Updated kits for over 100 teams, including national teams like Italy and Brazil, and clubs such as AS Roma. Iconic Moments
This article explains what dt80-300e-x64.cpk is, why it matters in PES 2021, how to install and troubleshoot it, and practical tips to keep your game stable and mod-friendly.