@1621559 , your teacher will be able to see all of your files that you've uploaded (from all submissions), but you might want to add a comment to the assignment letting your Instructor know what happened and that the files from the last submission and the most recent should all go together.
Yet, YOU (as a student) will only be able to see your most recent submission.
Also, not sure if you realize it or not, but you can go to the Assignment and see the files you've already uploaded (at least from your most recent submission). You can then click on them and save them to your computer or flash drive. That way you'll have additional copies. In addition, you can also then resubmit if you want and include all files at the same time.
Hope this helps!
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