March 13, 2018, update for SharePoint Enterprise Server 2013 (KB4011585)

Applies to: Microsoft SharePoint Server 2013 Service Pack 1

This article describes update 4011585 for Microsoft SharePoint Enterprise Server 2013 that was released on March 13, 2018. This update has a prerequisite.

Improvements and fixes

This update fixes the following issue:

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

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.

How to download and install the update

Download Center

This update is only available for manual download and installation from the Microsoft Download Center.

Update information


To apply this update, you must have Microsoft SharePoint Server 2013 Service Pack 1 installed.

Restart information

You don't have to restart the computer after you install this update.


Learn about the terminology that Microsoft uses to describe software updates. 

The Office System TechCenter contains the latest administrative updates and strategic deployment resources for all versions of Office.

File information

The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. 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.