.rpf files are core archive files containing the game's assets, such as models, textures, and sounds. When modding, these files are accessed via to replace original assets with custom ones. Core x64 .rpf File List
For technical reviews or troubleshooting, use these community-standard tools: gta 5 x64rpf all files
GTAV X64 RPF All Files: A Comprehensive Guide Create mods : Extract and modify game assets
Content: While specific files inside change with game versions, these "x64" series archives typically hold environment data, level details, and specific world textures. GTAV X64 RPF All Files: A Comprehensive Guide
OpenIV: This is the essential tool for modding GTA 5. It allows you to browse, extract, and replace files within the RPF archives.