Today's author, Dany Hoter, a Product Planner on the Excel team, talks about some performance characteristics he recently discovered using various methods to manipulate large ranges using VBA. Problem description You have a large range in Excel with data. Let's say it contains 100,000 rows and 50 columns for each row (Yes you are using Excel 2007 of course). So altogether you have 5,000,000 cells. Columns A to F have some alphanumeric data that you need analyze and based on the combination...