Export/import incompatibility?

If I export an RTC name field containing an asterisk to a CSV file, why does RTC complain when I try to re-import it?  There are a number of other characters that seem to be problematic, too, eg @.

I've found a defect (37476) that states import files should be utf8 encoded, but an asterisk is encoded as its ASCII self in utf8.

And on a related note - is there a way to get RTC to export dates in the format it requires for import?

Thanks,
Steve