Understood. I have checked multiple times to be certain of the guideline and then emailed her after saying the specification was only mentioned after the due date (didn’t mention that neither on the instructions or syllabus does it specify, as it might sound like I have an attitude) and I am sorry for the trouble as I realize it was in the wrong extension. Unfortunately, she is quite strict with her grading policies. So I will simply have to take the zero. I have no intention of blaming her or forcing her to do something even if I am in the right. I just wanted to know if something like this was simply allowed or is this an unfair grading. Thank you for reaching out! I hope she just overlooks this because the content work is correct. Thank you again