word = 4 bytes word 0 = 0x00010203 ; constant for checking for byte swapping word 1 = dataTypeID ; data type IDs are defined in FileTypes.h word 2 = reserved for later use word 3 = reserved for later use word 4 = reserved for later use word 5 = reserved for later use word 6 = reserved for later use word 7 = reserved for later use