How to fix the Oracle error KUP-11018: file string not a valid dump file?

In this post, you’ll learn more about the Oracle ErrorKUP-11018: file string not a valid dump file with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

KUP-11018: file string not a valid dump file

Reason for the Error KUP-11018: file string not a valid dump file

This file did not have the correct file format. It could not be used for an external table fetch operation.

How to fix the Error KUP-11018: file string not a valid dump file ?

You can fix this error in Oracle by following the below steps

Verify this file is from a SQL mode external table populate operation and that the operation was successful.