: ATFPack2 , which is the second volume of a collection, likely based on characters from the game After the Fall or a similarly themed "ATF" set.
: .var files are archives used by Virt-a-Mate to bundle textures, meshes, and physics settings for a character or scene. Wiler.ATFPack2-Girls.1.var
These files are typically "looks" or "scenes" shared within the Virt-a-Mate community. : ATFPack2 , which is the second volume
To use the "complete piece," you generally need to place the file in your VaM AddonPackages folder. If you are missing dependencies (the "complete" part), VaM will usually prompt you to download the specific sub-assets required from the VaM Hub. Are you having trouble in VaM, or Wiler.ATFPack2-Girls.1.var