checkout the file, c:report.html...
SQL> SET MARKUP HTML ON SPOOL ON BODY "TEXT='#FF00Ff'"
SQL> spool c:report.html
SQL> select * from emp;
EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO
---------- ---------- --------- ---------- -------------------- ---------- ---------- ----------
7369 SMITH CLERK 7902 DEC 17 1980 00:00:00 300 20
7499 ALLEN SALESMAN 7698 FEB 20 1981 00:00:00 300 300 30
7521 WARD SALESMAN 7698 FEB 22 1981 00:00:00 300 500 30
7566 JONES MANAGER 7839 APR 02 1981 00:00:00 300 20
7654 MARTIN SALESMAN 7698 SEP 28 1981 00:00:00 300 1400 30
7698 BLAKE MANAGER 7839 MAY 01 1981 00:00:00 300 30
7782 CLARK MANAGER 7839 JUN 09 1981 00:00:00 300 10
7788 SCOTT ANALYST 7566 APR 19 1987 00:00:00 300 20
7839 KING PRESIDENT NOV 17 1981 00:00:00 300 10
7844 TURNER SALESMAN 7698 SEP 08 1981 00:00:00 300 0 30
7876 ADAMS CLERK 7788 MAY 23 1987 00:00:00 300 20
7900 JAMES CLERK 7698 DEC 03 1981 00:00:00 300 30
7902 FORD ANALYST 7566 DEC 03 1981 00:00:00 300 20
7934 MILLER CLERK 7782 JAN 23 1982 00:00:00 300 10
14 rows selected.
SQL> spool off