Description of the security update for Excel 2013: March 13, 2018

Applies to: Excel 2013Microsoft Office 2013 Service Pack 1


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 Microsoft Common Vulnerabilities and Exposures CVE-2018-0907.

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. (Determining your Office version)

Improvements and fixes

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


  • A new registry key has been added to provide more control over object macros security. The "RestrictObjectMacros" DWORD registry key under HKCU/Software/Microsoft/Office/15.0/Excel/Security supports the following values:

    0 (or not present) – Default behavior
    1 – Strict
    2 – Lenient
    3 – None (not recommended)

    Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
    322756 How to back up and restore the registry in Windows


This security update also contains fixes for the following nonsecurity issues:

  • For files that contain special characters in the worksheet names, you may experience file corruption issue on a round trip across some locales. Additionally, you receive an error message that resembles the following:

    Excel found unreadable content in 'FileName'. Do you want to recover the contents of this workbook? If you trust the source of this workbook, click Yes.

  • Corrects the translation for following terms for different versions of Excel 2013:
    • The TRIM function in the Danish version.
    • The TRIM function in the Dutch version.
    • The Defer Layout Update check box for PowerPivot table in the Danish version.

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: March 13, 2018.

Security update replacement information

This security update replaces previously released security update 4011639.

File hash information

Package name Package hash SHA 1 Package hash SHA 2
excel2013-kb4018291-fullfile-x64-glb.exe 0E96A39511EF13C4C4CB54B3E245AFFE92790975 091E378D63DEDABE66C3F4876FE555415C9E7900B8E4E7569C64956E2AEE1F48
excel2013-kb4018291-fullfile-x86-glb.exe 4010CCA1FB9091E12538844A2CF73C48F75064F0 549124956D855213D8AEAAFB5074BB8470ABF59DB286A1363548806EFB24172B

File information

The English version of this security update has the file attributes (or later file attributes) that are listed in the following table. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the 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 the 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: 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