Excel 2010 SDK: Excel 2010 XLL Software Development Kit

The Microsoft Office Excel 2010 XLL Software Development Kit (SDK) contains conceptual overviews, programming tasks, and sample projects to guide you in developing Excel 2010 XLLs
  • Version:


    File Name:


    Date Published:


    File Size:

    2.7 MB

      The Excel 2010 XLL SDK includes the following:

      C API includes header and source files that enable a DLL to access Excel 2010 functionality, and a description of the interface that a DLL should expose to work with the Excel Add-in Manager.
      Microsoft Visual Studio 2008 projects includes C/C++ source code and shows how to use the C API.
      Documentation includes the API function reference, conceptual, and how-to Help topics.

      In conjunction with Microsoft Excel 2010, the Microsoft Excel 2010 XLL Software Development Kit (SDK) includes support for the following new features:

      New Functions The Microsoft Excel 2010 XLL SDK supports calling back to all of Excel 2010's new worksheet functions.
      Asynchronous User-defined Functions Excel 2010 now supports calling user-defined functions (UDF) asynchronously, which can improve performance by enabling several calculations to run at the same time.
      Cluster Connectors Cluster connectors enable UDFs to run on high-performance compute clusters.
      64-bit Support You can now compile and link both 32-bit and 64-bit XLLs.

      For more information, see the Excel 2010 XLL SDK Documentation.
  • Supported Operating System

    Windows 7, Windows Server 2003 R2 (32-Bit x86), Windows Server 2003 R2 x64 editions, Windows Server 2008, Windows Server 2008 R2, Windows Vista Service Pack 1, Windows XP Service Pack 3

      • This download works with the following applications:

        • Microsoft Visual Studio 2005
          Microsoft Visual Studio 2008 for 64-bit XLLs

        • Microsoft Excel 2010

    • To install this download:
      1. Download the file by clicking the Download link (above) and saving the file to your hard disk drive.
      2. Double-click the ExcelXLLSDK.exe program file on your hard disk drive to start the setup program.
      3. Follow the instructions on the screen to complete the installation.
    • This package does not collect any personal information.