First, you need download and install XlsToOra.
XlsToOra is a data conversion tool that helps DBA and database programmer upload Excel data to Oracle database.
XlsToOra can upload Excel data to Oracle easily and fast, saves your tons of time.
Upload Excel Data To Oracle – 3 Steps
Click “Import Excel” button.
then show the import excel form.
1. Select an Excel file.
2. Select a table.
3. Import to table or save sql script to file.
30-day free trial 
US$59.95 
