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Microsoft® Office Excel 2003 Inside Out by Mark Dodge, Craig Stinson

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Chapter 32. Creating Custom Functions

Although Microsoft Excel includes a multitude of built-in worksheet functions, chances are it doesn't have a function for every type of calculation you perform. Excel's designers couldn't possibly anticipate every calculation need of every user. But they did provide you with the ability to create your own custom functions. In the same way that a macro lets you encapsulate a sequence of actions execute that sequence with a single command, a custom function lets you encapsulate a sequence ...

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