Additional Files is a checkbox field that is used to attach supplementary files such as charts, graphs, data sets, etc.
Once you click the “Submit” button, you will be directed to another page where you can upload or link to the additional files. Check to make sure you have entered all of the necessary information into the metadata fields before pressing the submit button.
Note:It may take a few minutes to upload your materials, especially for larger files. Be patient! Only click the submit button once.