About the author

Robert Martin is an Excel MVP and Microsoft Certified Professional. With a background in finance, his career has ranged from being an IT Director of an investment bank in London to doing charity work in Africa, before moving to Brazil in 2007 and setting up an IT consultancy firm and then authoring training (audiovisual and written) material on Microsoft technologies. Currently he works in Brazil as an IT Consultant.

Robert Martin has also authored the following books:

• Excel Avançado, Digerati 2008

• RibbonX: Customizing the Office 2007 Ribbon, Wiley 2008

• Excel e VBA na Modelagem Financeira: Uma Abordagem Prática, Axcel Books 2005

I would like to thank my family who is always supportive in everything I do. I would also like to thank all those people who, directly or indirectly, made this piece of work possible.