Look for a folder named inside the mounted ISO or the initial extraction folder. Copy all files found inside that SKIDROW folder.
The .rar extension indicates a compressed archive. You will need a utility to unpack it. : Use WinRAR or 7-Zip . Gustavo.Kingdom.Rebirth-SKIDROW.rar
: You can simply double-click the .iso file to "mount" it as a virtual drive. Look for a folder named inside the mounted