"Unexpected error from external database driver" error when you create or open Microsoft Excel .xls files

Summary

This security update resolves an issue that was introduced in the October 10, 2017, update. Because of this issue, applications that are based on the Microsoft JET Database Engine (Microsoft Access 2007 and earlier versions, or non-Microsoft applications) fail when you create or open Microsoft Excel .xls files. When the problem occurs, you receive the following error message:

To learn more about the vulnerability that is resolved by the October 10 update, go to CVE-2017-8718.

How to obtain and install the update

More Information

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.
 

 Windows Server 2008 file information

How to obtain 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

File Information

File hash information

For all supported x86-based versions

For all supported ia64-based versions

For all supported x64-based versions