Explanation Of project:
There is a four option of uploading a type of data like Student, Student _report, subject, stuedent_data these are the four dropdown menu of the uploading data.
If student Option is choosed then You must have a student excel file contains column like 1]ID 2]Username 3]Email 4]Mobile
If student_report Option is choosed then You must have a student_report excel file contains column like 1]ID 2]student_subject_id 3]Marks
If subject Option is choosed then You must have to a subject excel file contains column like 1]ID 2]Name 3]Total_marks 4]is_active
If Student Subject Option is choosed then You must have to a student excel file contains column like 1]ID 2]Student_id 3]Subject_id