How to delete submissions with uploads on them

I would like to delete the uploaded submissions manually. But I don't know how to proceed. Can you please describe how I can do this?

To delete the uploaded files in submission data, you have 2 options.

#1 Delete only the Upload field in the form. This will delete the uploaded files in submissions also.

#2 Delete the submission data. User guide: How-to-Delete-Form-Submission-Data

Deleting the submissions will delete the uploaded submission files as well.

Please be careful in deleting fields or submission data. Once submissions are deleted, they are permanently gone. We cannot easily restore them since we do not keep any other copy of them.