04-12-2016 08:30 PM
04-13-2016 02:15 AM
In Excel, a missing numerical value is always represented as an empty cell. So if you want to have the column as numeric data, blanks is what you get.
A workaround could be to assign special non-missing values for your .S (before you do the export), which you could then use with a user-defined format in Excel, if that is possible.