Erika Ehrli - Adventures with Office Products & Technologies
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Developing Add-ins (XLLs) in Excel 2007

Developing Add-ins (XLLs) in Excel 2007

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If you are interested in learning about Microsoft Office Excel 2007 features that affect XLL add-ins and enable new XLL functionality, as well as changes to the XLL C API itself, we just published a great article by Steve Dalton that will help you get started.

The intended audience for this article consists of Microsoft Visual C and Microsoft Visual C++ developers who already have experience developing Microsoft Office Excel add-ins, or XLLs. This article is not an introduction to XLL development although a brief overview is included. To make the most of this article, readers should be familiar with:

  • C and C++ language concepts and constructs. Code examples are written in C++.
  • Building DLLs that export functions.
  • The XLOPER data structure and other Excel data types, such as the floating point matrix structure (FP).
  • The add-in manager interface functions, such as xlAutoOpen and xlAutoClose.
  • XLOPER memory management (xlAutoFree, xlFree, and the use of xlbitDLLFree and xlbitXLFree).

Read the article here: http://msdn2.microsoft.com/en-us/library/aa730920.aspx

Enjoy!
~Erika

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