Before dropping a downloaded file into OpenIV, manually copy your original dlc.rpf to an external backup folder on your desktop.

The path update/x64/dlcpacks/mpsum/dlc.rpf refers to a specific core data file in (GTA V) that contains content from the "Los Santos Summer Special" update. This file is a frequent source of errors—such as "DLC files are missing or corrupted"—particularly for players using the FiveM multiplayer client. Understanding the mpsum dlc.rpf File

A: No. OpenIV is a file explorer, not a mod browser. You must manually download from the sites listed above.

The safest way to download a clean, updated version of the mpsum file is to let your official game launcher fetch it directly from Rockstar's servers.

If you are missing this folder or need to install it for modding purposes, use the following methods: How To Find x64 Dlcpacks mods Folder In OpenIV - GTA V

Sometimes the files aren't actually missing; FiveM just can't find them because your installation path is wrong in the configuration files. FiveM - How To Fix DLC Files Missing (UPDATED 2026)

If you are running an older version of GTA 5 for specific mod compatibility (like older LSPDFR builds) and cannot update your main game, you must source the file manually.