Perspective Excel Download Corrupt

Ignition
4

OK name the file as .xlsx instead of .xls

This is the code that I have that is working

	#Export the ticket list to excel.
	tickets = self.view.custom.tickets
	if len(tickets) > 0:
		headers = tickets[0].keys()
		dataSet = [list(data.values()) for data in tickets]		
		ticketsExcel = system.dataset.toExcel(True,system.dataset.toDataSet(headers,dataSet))
		fileName = 'Tickets_{}.xlsx'.format(
			system.date.format(system.date.now(),'yyyMMd_kms')
		)
		system.perspective.download(fileName,ticketsExcel,'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet')

The only other thing I did was to add the contentType of “application/vnd.openxmlformats-officedocument.spreadsheetml.sheet”. I’m not thinking that that makes a difference though.