Date format in Analysis for Excel

Hello,

Any ideas how I can change the format to a "real date format" ?

I have a query result in Analysis, showing some date fields (info object Data type DATS (8)) but I can't really use the result format as a date.

I can't, for instance, calculate number of days, since the filed is treated as a text field.

Any workarounds that coud be helpful ?

Thanks

Björn