You will need a Macintosh with a PowerPC or newer central processing unit. Download the file QTLCartMac.sea.hqx and use StuffitExpander or BinHex4 to unbinhex the self-extracting archive. Double click the QTLCartMac.sea file to unpack the binaries and supplemental files. Some programs such as Netscape or Fetch will unbinhex the files for you, although they may require a helper application.
Once the QTLCartMac.sea.hqx file has been unpacked, you will have a folder called QTLCartMac with separate folders for the binaries, documentation and examples. The subfolder cbin has carbonized binaries, while the bin folder has binaries that do not require the Carbon libraries. To use the programs, open the appropriate binary folder and double click on the program you want to run. You will first be presented with a console window. All you need to do is click on OK to get to the interactive menu for setting options. You can also enter command line options in that box if you like.