1.In spoon, Open an S3 File Output step.
2.Click on the Browse button near the File name text field.
3. In the Open File dialog, select S3 for the Look in value.
4. The connection part of the dialog shows two text fields
the first one has label as Access Key
the second one does not have a label, The label should be Secret Key:
The test field is functional, able to connect to S3.