Mike Alexander is a Microsoft Certified Application Developer (MCAD) and author of several books on advanced business analysis with Microsoft Access and Excel. He has more than 17 years’ experience consulting and developing Office solutions. Michael has been named a Microsoft MVP for his ongoing contributions to the Excel community. In his spare time he runs a free tutorial site, www.datapigtechnologies.com, where he shares Excel and Access tips. [(source)][1] [1]: http://mvp.microsoft.com/en-us/mvp/michael%20alexander-4012540