This typically refers to the "Next Gen" era updates that brought enhanced assets to the game.

Now you can edit the file safely in mods/update/x64/dlcpacks/patchday3ng/dlc.rpf . Typical File Path

There are three main reasons you might be searching for a standalone download of this file:

You installed a car mod directly into the original file (instead of using a "mods" folder) and forgot to make a backup. Now your game won't launch.

This will automatically scan your directory and redownload the authentic patchday3ng dlc.rpf directly from Rockstar. Method 2: The OpenIV "Mods" Folder Method