: This file cannot be opened or installed on its own. You must have all subsequent parts (part02, part03, etc.) in the same folder to successfully extract the contents.
: Once all parts are present, extracting "part01" automatically pulls data from the rest to reconstruct the full ISO or installation folder for the game. Technical Context PES2021.part01.rar
When large games like PES 2021 are shared or backed up online, they are often split into smaller "parts" (e.g., part01, part02, etc.) to make downloading more manageable and to stay within file size limits of hosting services. : This file cannot be opened or installed on its own