When using Report Portal, downloading the reports into Excel, I got this message up every time I did it. When you click Export to Excel on the Report Portal toolbar, you receive an error message similar to the following:
Problems came up in the following areas during load:
Missing file: ReportPortal/style.css
When you click OK, Microsoft Excel loads the spreadsheet, but without some of the formatting that was applied in the spreadsheet control.
I tried your suggestion, unfortunately it didn’t help.
After some tweaking, I finally found the cause and cure for my problem.
Try setting IIS to use HTTP Headers, Enable content expiration, switched OFF for style.css Properties:
1) Open IIS console 2) Right click onto style.css to open propertied dialog of the "style.css Properties" 3) HTTP Header tab > Enable content expiration: uncheck "Enable content expiration"