Are you getting a when you try to open it? Do you have all the other parts (part2, part3, etc.)?
: Ensure you have every related file in the same folder (e.g., part1 , part2 , part3 ). SPECIAL1074_PACK2.part1.rar
: You are missing one of the numbered parts. Are you getting a when you try to open it
: Use WinRAR (Windows) or The Unarchiver (Mac). SPECIAL1074_PACK2.part1.rar
: Right-click only the .part1.rar file and select "Extract Here."