Editing the option file in PES 2021 PC version 10100 can enhance your gaming experience by allowing you to customize various game settings. By following this guide, you can safely edit the option file and make changes to team and player data, game settings, and more. Remember to always backup the original option file and use caution when making changes to avoid any potential issues.

If the game says no data is found, your folder structure is likely wrong. Ensure the path is exactly Documents/KONAMI/eFootball PES 2021 SEASON UPDATE/WEPES/ . Do not put folders inside the WEPES folder. Crashing During Import

Fine-tuning the gameplay to feel more realistic and less "arcade-like."