You should also note that TurboTax Business would be the Intuit product used to prepare an income tax return for a trust (Form1041).
See https://turbotax.intuit.com/small-business-taxes
TurboTax Business must be installed and run in a Windows environment as there is no online or Mac version.
The foregoing begs the question as to who has been filing returns for the trust (if anyone) over the years or how has any income the trust earned been reported?
