SQL & PL/SQL

i have data in excel, how can create the table structure for month name and month value in rollup function in reporting SQL.

CREATE TABLE "EXPENCES_TABLE"

( "SL" NUMBER,

"EXPENCES_TYPE_LOV" NUMBER,

"EXPENSE_ACCOUNT_NUMBER" NUMBER,

"ACCOUNT_NAME" VARCHAR2(25),

"JAN_MONTH" DATE,

"JAN_AMOUNT" NUMBER

--how can add the month and value in same table? the above column method is correct way?

) ;