php upload, please help urgently!!

i have a homework which requires to be finished today and could not do unfortunately. the homework is exactly like that:

Develop a simple PHP application that will let the user upload a data file in CSV (comma separated values) format and display it as a table, along with footer rows showing the sum and average of numeric columns. Export your data set as a CSV file and make sure that your PHP code works with your CSV file.

i made really effort to do that, but i just know how images are done in this way not tables in csv format. i need proper codes for this homework.

Any helps is appreciated…

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