RX93DBF.ZIP contains four zipped files:
        DISK1DBF.ZIP 1,295,355 bytes
        DISK2DBF.ZIP 1,360,850 bytes
        DISK3DBF.ZIP 1,016,057 bytes
        DISK4DBF.ZIP 1,237,699 bytes
        
        Unzip DISK1DBF.ZIP and issue the following ARCE command to obtain
        the USER'S GUIDE on how to use the data.  Depending on your area 
        of interest, you may not need to unzip all files.  
        
        NOTE: The documentation refers to the data as though it were 
        on floppy diskettes.

        ARCE document.arc