Heya I've just purchased the koolreport/excel package for a project. Whenever I export to Excel Excel opens with an error message - unreadable content? "We found a problem with some content in 'recruitment-report-2019-07-04 (4).xlsx'. Do you want us to try to recover as much as we can? If you trust the source of this workbook, click Yes."
Have you seen this issue before, do you know what might causing this? I can see this irritating the customer if they have to click through these popups every day.