Data in two different coulmns merge into one column

Question

I am using following script to create external table with data.
CREATE TABLE external_class(
item_no varchar2(255),
max_range varchar2(255)
ORGANIZATION EXTERNAL
TYPE ORACLE_LOADER
DEFAULT DIRECTORY DATALOAD
ACCESS PARAMETERS
RECORDS DELIMITED BY NEWLINE
FIELDS TERMINATED BY ','
MISSING FIELD VALUES ARE NULL
(item_no,max_range)
LOCATION ('class_newc.txt')
REJECT LIMIT UNLIMITED;
Problem is that its merge both columns into one column.
I want two seperate columns.
Data is in microsoft excel spread sheet.
I saved as txt(TAB DELIMITED) txt
Data appears in clas.txt file as below:
"400     "     4177.64
"404     "     5574.64
"406     "     5333
"408     "     
"409     "     
"450     "     10.83
"478     "     
"482     "     4820
I ran the above script to create table.
Table Created
SQL> desc external_class;
Name Null? Type
ITEM_NO VARCHAR2(255)
MAX_RANGE VARCHAR2(255)
SQL> select count(*) from external_class;
COUNT(*)
3036
but with
select * from external_class;
ITEM_NO MAX_RANGE
"400"4177.64
"404"5574.64
"406"5333
"408"
"409"
"450"10.83
"478"
"482"4820

Answer 1

thanks its work.
Actually I created other file as below
Item_no-----max_range
400     4177.64
404     5574.64
406     5333
408     
409     
450     10.83
and use creation script as below:
CREATE TABLE external_class(
item_no varchar2(255),
max_range varchar2(255)
ORGANIZATION EXTERNAL
TYPE ORACLE_LOADER
DEFAULT DIRECTORY DATALOAD
ACCESS PARAMETERS
RECORDS DELIMITED BY NEWLINE
fields terminated by whitespace
MISSING FIELD VALUES ARE NULL
(item_no,max_range)
LOCATION ('class_newa.txt')
REJECT LIMIT UNLIMITED;