Office

    Thank you for downloading

    • Excel 2010 SDK: Excel 2010 XLL Software Development Kit

      If your download does not start after 30 seconds, Click here
        • 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.

    Popular downloads

    Loading your results, please wait...

    Free PC updates

    • Security patches
    • Software updates
    • Service packs
    • Hardware drivers

    Microsoft suggests

    Office 365 on the devices you love. Buy now.
    The Office you love, on the devices you love
    Includes PC, Mac, smartphone, and tablet—starting at $6.99/month.
    Buy and download