The safest and most reliable way to get the original file is to trigger a file integrity check through your specific game launcher: and right-click on Grand Theft Auto V Properties Installed Files

If you have corrupted or missing your file, you should not download it from third-party websites. These files are often huge, outdated, or may contain malware. Instead, use your game launcher's built-in repair tools to restore the original, vanilla version. How to Restore the Original x64e.rpf