RX90ASC.ZIP contains three zipped files:
        DISK1ASC.ZIP 1,020,460 bytes
        DISK2ASC.ZIP 1,062,823 bytes
        DISK3ASC.ZIP   762,275 bytes

        Unzip DISK1ASC.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