A .rar file is a "data container" used to store one or more files in a compressed form to save space. Depending on where you found the link, the "Spreewald" package likely contains one of the following:
: For simulators like Euro Truck Simulator or Farming Simulator , "Spreewald" often refers to custom map expansions that recreate the unique forest and canal landscape of eastern Germany. Download spreewald rar
: Outdoor enthusiasts often download .rar files containing detailed topological maps for GPS devices to use while hiking or canoeing in the region. Download spreewald rar