Description of the security update for Excel 2013: May 8, 2018

Applies to: Microsoft Office 2013 Service Pack 1Excel 2013


This security update resolves vulnerabilities in Microsoft Office that could allow remote code execution if a user opens a specially crafted Office file. To learn more about these vulnerabilities, see the following Microsoft security advisories:

Note To apply this security update, you must have the release version of Service Pack 1 for Microsoft Office 2013 installed on the computer.

Be aware that the update in the Microsoft Download Center applies to the Microsoft Installer (.msi)-based edition of Office 2013. It doesn't apply to the Office 2013 Click-to-Run editions, such as Microsoft Office 365 Home (see Determining your Office version).

Improvements and fixes

This security update contains improvements and fixes for the following nonsecurity issue:

  • Assume that you display the preview pane in Windows Explorer in Windows 10. When you select an Excel workbook and it is displayed in the preview pane, you cannot use the mouse scroll wheel to scroll the Excel workbook.

How to get and install the update

Method 1: Microsoft Update

This update is available from Microsoft Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to get security updates automatically, see Windows Update: FAQ.

Method 2: Microsoft Update Catalog

To get the stand-alone package for this update, go to the Microsoft Update Catalog website.

Method 3: Microsoft Download Center

You can get the stand-alone update package through the Microsoft Download Center. Follow the installation instructions on the download page to install the update.

More Information

Security update deployment information

For deployment information about this update, see security update deployment information: May 8, 2018.

Security update replacement information

This security update replaces previously released security update KB 4018350.

File hash information

Package name Package hash SHA 1 Package hash SHA 2
excel2013-kb4018399-fullfile-x64-glb.exe 915D50C6A20BDF7355414CFC83B93279C317C34A 4543C9E23B3309E75DEC4E079ED8B8A437946E010CFBD62B66D9EE25A1D72F44
excel2013-kb4018399-fullfile-x86-glb.exe A114E69954B87D102CA4FE7D6A7F64595DBE10F7 4F517DFC370F14E31ADAF92F304B5788C00C7CFFCB377B63610553C5C07069FA

File information

The English version of this security update has the file attributes (or later file attributes) that are listed in the following tables. The dates and times for these files are listed in Coordinated Universal Time (UTC). The dates and times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and times may change when you perform certain operations on the files.

How to get help and support for this security update

Help for installing updates: Windows Update: FAQ

Security solutions for IT professionals: TechNet Security Support and Troubleshooting

Help for protecting your Windows-based computer from viruses and malware: Microsoft Secure

Local support according to your country: International Support

Propose a feature or provide feedback on Office Core: Office User Voice portal