The Database Wizard could use better defaults for text files.

I.
The default field separated should be a comma for two reasons: a) the term
"comma separated values" means comma is the field seperator and b) it would be
consistent Calc's Text Import where comma is the default field seperator.

II.
Changing the field separator to comma (in I., above) would conflict with the
default thousand separator (currently comma)--where perhaps {None} would be a
better default.

III.
{None} should be added to the drop-down lists for Decimal separator and
Thousands separator.  This change would be consistent with the Text seperator
drop-down list.