ARulesXL? turns any Microsoft® Excel® spreadsheet into a powerful tool for delivering business rule applications. Instead of difficult to code, maintain and understand Excel IF statements, rules are entered in a natural and easy to understand syntax. The rules are queried, much like a database. Rules entered using ARulesXL are: easier to code, easier to maintain, more reliable, and easily audited. Price Waterhouse Canada is one of the first commercial users of ARulesXL and is using the product for developing equity compensation analysis tools. Visual Data LLC, vendor of Office Practicum? pediatric office software, is using ARulesXL for the development and testing of rules used in vaccination planning. Visit to download an evaluation copy and see it at work on a variety of application ideas, including: legal document assembly, pricing, product advice, business rules (incorporation, loan approval, licensing), and medical advice (vaccination planning).