when displaying a page of an Excel file where the date format is DD/MM/YYYY it will appear as MM/DD/YYYY in the web client when running in a Japanese environment
Recreation steps:
create an Excel file.
Add a date and format it as dd/mm/yyyy.
Upload the file to EWB.
Display the page or create PDF
You will see the date as mm/dd/yyyy.
This does not happen with other date formats such as dd/mm/yy/