+ [ 'name', 'street', 'zipcode', 'city' ]
+
+ multiplexed data with two different types:
+ [ [ 'datatype', 'ordernumber', 'customer', 'transdate' ],
+ [ 'datatype', 'partnumber', 'qty', 'sellprice' ] ]
+
+=item C<profile> PROFILE_DATA
+
+The profile mapping csv to the objects.
+
+See section L</PROFILE> for information on this topic.
+
+=item C<ignore_unknown_columns>
+
+If set, the import will ignore unknown header columns. Useful for lazy imports,
+but deactivated by default.
+
+=item C<case_insensitive_header>
+
+If set, header columns will be matched against profile entries case
+insensitive, and on match the profile name will be taken.
+
+Only works if a profile is given, will die otherwise.