Developer's DescriptionBy SigmaXLMeasure, analyze, and control your service, transactional, and manufacturing processes.SigmaXL is a leading provider of user friendly Excel add-in tools for statistical and graphical analysis. Our flagship product, SigmaXL was designed from the ground up to be cost-effective, powerful, and easy to use. It allows users to measure, analyze, improve, and control their service, transactional and manufacturing process.