Your JIRA Excel export is refused to open by your Excel?

Excel refusing to open files? Blame the KB 3115322, 3115262 security updates in your Windows… (see this)

As always, Excel is causing a lot of problems… Microsoft Excel is not trustworthy… ( see this )

Then, the solution to open the HTML exported JIRA files (Excel files) in your computer is this:

Open Excel Go to File –> Options –> Trust Center –> Trust Center Settings –> Protected View Uncheck “Enable Protected View for files originating from the Internet”