For more advanced troubleshooting, you can explore the GTA V SteamDB depots to see which specific update version your file belongs to.
x64a.rpf is a core archive file belonging to for PC. Rockstar Games uses the RPF (Rockstar Penguin File) format to package massive amounts of game data into compressed, secure containers. X64a.rpf Download
When downloading files like X64a.rpf from the internet, it's crucial to consider both safety and legality: For more advanced troubleshooting, you can explore the