Export HTML Table to Excel- Doesn't Open in Office 2010

Question

I am using the following Javascript code to generate an excel on the fly, which converts HTML table to a spreadsheet.

The excel file does not open in Office 2010, sh

Answer 1

Similar issue, my code dumps from a GridView to an XLS file using StringWriter, HTMLTextWriter and RenderControl.

Since our ASP.NET code runs on a company intranet we uninstalled the following updates across the company instead of going into 100s of user PCs and changing their settings.

Uninstalled:

• Windows Update KB3115262 (Excel 2013)
• Windows Update KB3115130 (Excel 2010)
• Windows Update KB3115272 (Excel 2016/64 bit)

This fixed our issue, and would also fix yours and others affected by these updates.