I have created a s/s to record bank transactions, it has been used on an ipad and emailed to me, at which point the dates are as they were entered, but when I then try to copy the sheets to a new workbook the dates mysteriously change altogether, the format changes from DD-MMM-YY to DD-MM-YYYY and they are totally different from the originals. Has anyone any idea what is happening and how to stop it ?