Charles Williams
About
Independent Excel consultant for over 20 years: fanatical about Excel performance and extensibility. Develops C++ XLLs and VBA Addins and solutions and currently dabbling with Javascript. Author of the FastExcel, SpeedTools multi-threaded function library, Manager Pro and Name Manager addins.
Microsoft Excel MVP since 2009.
Excel Virtually Global is an independent conference and is neither sponsored nor approved by Microsoft.
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