You could cast to string if all you need is for it to be human readable, like:
SELECT CAST(alias/DateTimeAttribute AS String) AS ColumnName
or in Excel use a function to convert (not sure why you couldn't), like if your date is in cell A1:
=A1/(24*60*60*1000) + DATE(1970, 1, 1)
and format the column with the results as Date and/or Time.
Hi Martin,
sorry for my late response.
Thanks a lot for your answers.
They work fine. Thanks again!!