i'm developing an online campus portal,
the administrator has to enter student, staff records in an excel sheet, which later he has to upload the same excel to the DB via PHP after logging into my application.
how can i safeguard my excel worksheet from being tampered or updated.
i'm printing the excel sheet which admin has created in my application then, after a button click the records will b sent to DB.
if i use html forms i'll be on safe side, so tht no one knows whtz happening on the backend.
is there any possibility of creating a new worksheet in the browser?(which can be editable also, so tht therez no need to create excels separatley apart from my app.)
any suggestions guys???