Since you are asking about updating x64/dlcpacks/mpchristmas3/dlc.rpf , this applies to or single-player modding (OpenIV) .
This is the most "solid feature" for fixing missing or corrupted DLC files like mpchristmas3/dlc.rpf Rockstar Games Launcher Grand Theft Auto V under "My installed games," and click Verify Integrity : Right-click Grand Theft Auto V in your Library > Properties Installed Files Verify integrity of game files Epic Games Store : Click the three dots next to GTA V in your Library > Bajaj Finserv 2. Manual Path Check (FiveM Users) Update X64 Dlcpacks Mpchristmas3 Dlc.rpf Download