Use software like WinRAR or 7-Zip to extract the contents, starting with .part01.rar .
If the extraction fails, this particular part ( .part09.rar ) may be corrupted, or another part is missing.
This file is one part of a larger download (usually part 01, 02, etc.) used to distribute large PlayStation 4 games ("PKGs"). Source: pkgps4dotcom (a third-party PS4 game hosting site). How to Use