Because it is a .part3.rar file, it is incomplete on its own. You generally need all other parts (Part 1, Part 2, etc.) in the same folder to extract the full game successfully.
Based on the naming convention and the "QYIR6JUO" identifier, here is what this file represents: otomi-games.com_QYIR6JUO.part3.rar
Files downloaded from third-party "free" game sites can sometimes be flagged by antivirus software. It is always a good idea to scan the extracted folder with a tool like Malwarebytes before running any .exe files. Do you have the other parts of this archive, or Because it is a
Right-click Part 1 and use a tool like WinRAR or 7-Zip to "Extract Here." It will automatically pull data from Part 3 to complete the process. It is always a good idea to scan
Ensure you have parts 1, 2, and any others downloaded.