inserir delimitador ";"

Quero exportar para excel/calc este select:

select sistema,

sum(c1) AS C1, sum(c2) AS C2, sum(c3) AS C3, sum(c4) AS C4, sum(c5) AS C5, TO_CHAR(sum(c6)) AS C6, TO_CHAR(sum(c7)) AS C7, TO_CHAR(sum(c8)) AS C8, TO_CHAR(sum(c9)) AS C9 from custo group by SISTEMA

Tem como delimitar por , ou ; as colunas uso o sqldeveloper 4.0.1