dlclist.xml ---> Grand Theft Auto V\mods\update\update.rpf\common\data\dlclist.xml

OR IF YOU HAVE OTHER ADD-ON DLC, JUST ADD THIS LINE :

"<Item>dlcpacks:\gt1\</Item>"





dlc.rpf ----> Grand Theft Auto V\mods\update\x64\dlcpacks\gt1  <---- create the folder "gt1" in openIV