In a report date field is in YYYY-MM-DD format and when the report is run in HTML format format appears as YYYY-MM-DD but when the report output is exported to CSV ,date format seems to change i.e displaying DD-MM-YYYY rather than YYYY-MM-DD
Any ideas how to make the format constant in both the format
Did you try setting Format as Date and specify the ordering?
It gives me same format in html and excel when I set those formats.