I am currently a Student, developing a Website for an Online Course Planning for Monash I am Stuck with a reading HTML files in my PHP code

I need to Upload a File (Unofficial Records of a Student) and once I Click Upload, the System MUST Scan the HTML file and read through the Tables from the first (of the academic Records to the Last one) where it says Incomplete and it must evaluate the Grade, if it is a P, C, D, HD, the System will automatically Cross that unit for the Student, if the Student has Failed, it will be a N and the System must automatically highlight the Unit in order to tell that the student needs to re do the Unit

when the Academic Record is saved from the official Monash website, it saves automatically as a HTML, so i have no way in changing that

(Note that it is a student who will download in future use, not programmers, so they might not know how to convert it)