[oXygen-user] date time format when importing from Excel

Hi, I am using oXygen's very useful import tool to convert some data in a spreadsheet to XML. In the spreadsheet there are several fields which contain a date/time. When I import these fields they come out in the format <date>Fri Dec 06 00:00:00 GMT 2002</date> no matter what format I use in the source document. It seems to me that oXygen is correctly recognising that these are dates but then putting them into a format which I don't recognise. Really I want them to be ISO 8601 (YYYY-MM-DDThh:mm:ss.sss). I have tried defining this as a custom format in the spreadsheet but it is still coming out as shown when I run the import. Is there some way I can specify the format I want in oXygen? Thanks Rob Walpole