Can I just upload one file that has all my required documents in it?
Unfortunately, no. You should upload an individual file for each requirement on your application. For example, if your transcript from your school also has your SAT scores, you will have to upload your document to both the High School Transcript and SAT/ACT Score slot on your application for it to be properly processed. Make sure to change your document’s name to match the slot it’s going into for easy reference.