So then just extract it to Package. Check with CUSTARD to figure out which file is which. Take the lot file and toss it into the Library, then take the rest of the stuff (you can merge the shit or not.Merging recommended.) and toss into Mods>Packages. The launcher is a fucked up nightmare and I do not have any idea why people still attempt to even try to use that shit.

ETA: Just for those who can't install it
Here is Villa Paraíso converted to Package. (Launcher Independence FTW)
Lot file goes in Library, Objects go into Mods>Packages. There is no PC, so you can quit your whining now.