How to Install an SDC File


A Microsoft Secure Download Cabinet (SDC) file is a compressed, or zipped, file that is opened and installed only with the Microsoft UnpackSDC utility. The SDC file extension is also utilized by spreadsheets and may be opened using the open source spreadsheet program. However, if you are an MSDN member, and have an installation file with the SDC file extension from the MSDN Academic Alliance, the SDC file is an installation file and is installed using the Microsoft UnpackSDC tool, which is included by default in Windows.

Things You'll Need

  • Spreadsheet installed (for Section 2)

Install Microsoft SDC File

  • Open a Web browser, and navigate to the site where the SDC file can be downloaded.

  • Click the “Download” link to download the SDC file.

  • Click the “Run” option, versus saving the file to your hard drive, when prompted. The SDC file is unpacked automatically, once downloaded. The files in the SDC archive are installed to the computer and the SDC file is deleted.

Open an SDC Spreadsheet File

  • Right-click on the SDC file to show the context menu.

  • Click “Open With” from the context menu. A list of programs opens.

  • Scroll to and click on the “ Spreadsheet” option. The SDC spreadsheet file opens in Spreadsheet.

Tips & Warnings

  • If the SDC file is not deleted after the installation, something went wrong during the download or installation process. Try downloading the SDC file again to restart the process.

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