There's a DDE tool that comes with esignal, but you need to launch it from the start menu. Go to Start, Programs, and find your esignal folder. There should be an Excel sample selection which will launch Excel with a 5 button toolbar. The first button opens a sample file with some tabs that show you more about DDE, including a tab which is called Qualifiers Description which lists all the fields you can use. The last button on the toolbar gives you a help file that explains how to use the tool to set up a DDE spreadsheet easier than you can do on your own.
Cheers,
Paul