Downloading files with these names from unofficial sources or peer-to-peer sites carries a high risk of malware, ransomware, or trojans . "Part" files are frequently used as wrappers for malicious code because users expect to run an executable (.exe) once the parts are joined. Recommendations
In the world of digital file sharing, large games are often split into multiple compressed "parts" (like .part1, .part2, .part3) to make them easier to upload and download. To use this specific file, you would typically need all the other parts (part1, part2, etc.) in the same folder and use a program like WinRAR or 7-Zip to "extract" them into the full game installer. Context & Risks Total.War.Three.Kingdoms-CODEX.part3.rar
Often has "Total War" franchise sales where the Three Kingdoms collection is heavily discounted. Downloading files with these names from unofficial sources