This indicates the download was split into multiple compressed archives. You need all parts (Part 01, 02, 03, etc.) in the same folder to extract the game successfully.
Searching for or downloading files with this exact name often leads to: NieRAutomataCPY.part02.rar
Pirated "parts" frequently go missing or become corrupted, making the entire download useless. This indicates the download was split into multiple
Buying the official version ensures you have the latest stability patches and supports the developers for future projects. NieRAutomataCPY.part02.rar