Select or WinRAR > Extract to Corpse.Party.Book.of.Shadows\ .
To use the file "Corpse.Party.Book.of.Shadows.rar," you must first extract its contents using a third-party archive utility, as Windows does not natively support the .rar format. Corpse.Party.Book.of.Shadows.rar
A new folder will appear containing the game's executable and data files. Select or WinRAR > Extract to Corpse