While there isn't a specific "version 10100" widely recognized in the community, this often refers to specific iteration numbers from popular creators. For eFootball PES 2021 Season Update on PC
While the 1.01.00 patch itself updated rosters for licensed teams like Serie A and Spanish leagues, option files ensure full squad alignment and player names for unlicensed teams. option file pes 2021 pc version 10100
The Option File allowed the game to serve as a sandbox. If a user wanted to play a Champions League campaign with proper branding, or a Copa Libertadores with accurate ad-boards, the file facilitated this. It preserved the superior gameplay mechanics (the weight of the pass, the collision system, the player physics) while modernizing the veneer. In doing so, the Option File arguably saved PES 2021 from obsolescence, securing its status as the preferred football simulation for purists even years after its release. While there isn't a specific "version 10100" widely
While many modern OFs target later Data Packs, these established creators often provide legacy versions for 1.01.00: If a user wanted to play a Champions
Download the Option File (usually in .rar or .zip format) from a trusted community source.
Move the WEPES folder to: Documents\KONAMI\eFootball PES 2021 SEASON UPDATE\WEPES .
Save this code in a text editor (e.g., Notepad) and save it as a .dat file, for example, pes2021_option_file_10100.dat .