Enhanced Export FAQ
Why can't I copy export every template to Excel?
The HTML support in office is quite basic, and Excel simply don't understand modern HTML. Then designing templates you have to choose between optimizing for layout or optimizing for exporting to excel.
Excel prompts me "The file format and extension of ... coruppt or unsafe..."
The prompt/message from Excel is dependent on a client setting in excel called Extension Hardening.
HKEY_CURRENT_USER\Software\Microsoft\Office\[OfficeVersionNumber]\Excel\Security\ExtensionHardening=0Please refer to https://support.microsoft.com/en-us/kb/948615 for a more detailed description
Excel starts but doesnt open a new window/the file
Yet another of Excels "security" features, if you have installed KB3115262 Excel by default blocks you from opening files originating from Internet. To allow Excel to open files originating from internet :