Debra Dalgleish is a computer consultant in Mississauga, Ontario, Canada, serving local and international clients. Self-employed since 1985, she has extensive experience in designing complex Excel and Access applications, as well as sophisticated Word forms and documents. She has led hundreds of Microsoft Office corporate training sessions, from beginner to advanced level. In recognition of her contributions to the Excel newsgroups, she has received the Microsoft Office Excel "Most Valuable Professional" award each year since 2001. You can find a wide variety of Excel tips and tutorials, and sample files, on her Contextures website: Contextures.com/tiptech.html.