Deductions & credits

What year did you come to the US?  If you have been in the US on the F-1 visa for five or fewer calendar years, TurboTax is not able to prepare your tax return.

 

If you are required to file a tax return, you need to do, regardless if you filed an extension or not.  Whether or not you get a refund or if you owe more tax will depend on your specific circumstances.