HomeTroubleshootingAll Products: Other Issues"Some files can contain viruses. ..." When Opening Example Spreadsheets

3.21. "Some files can contain viruses. ..." When Opening Example Spreadsheets

Applies to: All products, 5.x–7.x, in Office 2016

In Help » Example Spreadsheets, no matter which file I select, I get this message:

Opening C:\Program Files (x86)\Palisade\ ...

Some files can contain viruses or otherwise be harmful to your computer.
It is important to be certain that this file is from a trustworthy source.

Would you like to open this file?

This error in Excel is due to Microsoft's update KB 4011051, which was rolled out beginning 2017-08-01.

Microsoft fixed the problem with a later update, KB 4011093, rolled out beginning 2017-08-22. Either uninstall 4011051, install 4011093 manually, or wait for the fix to reach you through Windows Update.

See also: Hyperlinks to another Excel workbook no longer work after updating to the August 1, 2017 update

Last edited: 2017-08-31

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