This is the top technique that separates pros from amateurs.
Example:
Original:\GTAV\update\update.rpf
Modded:\GTAV\mods\update\update.rpf
Upon launching OpenIV, it will ask you to locate your game. Point it to the exact folder containing GTA5.exe (or RDR2.exe). openiv setup top
For Steam users: C:\Program Files (x86)\Steam\steamapps\common\Grand Theft Auto V
For Epic users: C:\Program Files\Epic Games\GTAV
Wait until OpenIV releases a patch (usually within 48 hours). This is the top technique that separates pros
This is the hallmark of an advanced user. Instead of editing the original update.rpf or x64.rpf archives, you create a virtual mirror.
How to copy via OpenIV:
Now, any modification you make to update.rpf will be done on the copy inside mods. The original remains untouched, preserving online play integrity (though you should never mod in online mode).
Do not rush to download OpenIV from the first Google result. The official source is openiv.com. As of the latest updates, OpenIV requires: Example:
Original: \GTAV\update\update