Already done.
[Link: remotecentral.com][Link: remotecentral.com][Link: remotecentral.com]You will find comprehensive listed documentation in each of these posts that were copied out of either a Word or Excel document.
[Link: remotecentral.com]This utility does what you want. Read some of the details in the read me file first and then search forum posts for numerous discussions on the use of make hex.
