Based on similar "ATF" (Bureau of Alcohol, Tobacco, Firearms and Explosives) community mods, this pack likely includes:
Custom decals for Law Enforcement (LEO) vehicles such as SUVs or vans used in roleplay servers. How to use this file: Wiler.ATFPack3_Skins_V2.1.rar
Always ensure you download such files from reputable community hubs like the Steam Workshop or Armaholic to avoid security risks associated with unverified .rar files. Young Flacko's ATF Pack - Workshop - Steam Community Based on similar "ATF" (Bureau of Alcohol, Tobacco,
The file appears to be a modification (mod) package containing textures or "skins" for a tactical shooter game, likely Arma 3 or a similar military simulation. Firearms and Explosives) community mods