I came alone this blog by the name of Chandoo that allowed me to steal one of his book toshare it with my colleague or friend.
Purna Duggirala is the CEO (Chief Excel Officer) for Chandoo.org that primarily share new ideas and discuss about the problems that he is working on Microsoft Excel.
To steal a copy of his book for free, please click here.
Do drop by his blog at chandoo.org for more tips and tricks for you to be excellent in Excel.
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