You will find that in Step 2 of the Data Import Wizard, after picking the file containing the data to import in Step 1.
You can read about it in https://www.thatjeffsmith.com/archive/2012/08/using-oracle-sql-developer-to-setup-sqlloader-runs/
it's not available for Excel file imports, save your excel file as a CSV, and you'll be good to go
And I think the Import Data Wizard has a minor bug. If you have both an xlsx and a csv export and
1) Pick the xlsx first. Then, as you stated, the Import Method drop-down contains no SQL*Loader Utility
2) Go back and pick the csv. Then Import Method still lists no SQL*Loader option.
You need to cancel the wizard and start over by picking the csv export. Then Import Method drop-down contains SQL*Loader Utility in the list.
Thank you! Thanks for pointing out the bug.
Thank you. I use the import often for excel documents and was expecting to show up. I thought it did in other past release but could be wrong since it has been a few years using that utility.