I got a bank account statement xls sheet with date in format of DD/MM/YYYY i.e. 06/01/2019 in the original form, but when I'm trying to format it into DD-MON-YY it is taking the value as MM/DD/YYYY and converting it as 1-Jun-2019.
I have downloaded the file directly from bank server(online bank account) in xls format and opening it in Google Sheet.