: Download WinRAR or the free, open-source 7-Zip . Right-click the file and select "Extract Here." Mac : Use The Unarchiver or Keka .
: It may contain a United States-specific version of a firmware update or software driver. US.rar
Depending on your specific context, here is how to handle a .rar file of this nature: : Download WinRAR or the free, open-source 7-Zip