There was a problem where someone offered a solution using Excel.

In that problem the solver presented a range of values for the spreadsheet to test automatically against given criteria.

I would appreciate any assistance in locating that problem, or being advised as to what Excel Utility I should access for that add-in. The solver of that problem gave such info and with a quick install-usage explanation.

I'm sure it is Numbers, Algorithms or Just Maths but I don't recognise the title. I know that I could go through each problem in the last 12 months (sure it occurred then) in those categories, but I wait in hope!