There used to be an Essex company called 456 world which marketed Lotus 123>spreadsheets addins. There used to be a program called Bond Yields II in their brochure which I am trying to trace. I would like an Excel 97 or later equivalent. Bond yields for different market places and countries have different formulas and conventions and Bond Yields II catered for many of them. The analysis toolpak in Excel is inadequate. Given Lotus has to a large extent lost its commanding market share to Microsoft Excel the company may not still exist but may be the software does. > >Any thoughts appreciated. >