If you are a non-resident alein you cannot file a Form 1040 or use TurboTax.
If you need to file a US tax return then you must use the Form 1040-NR, which is not supported by TurboTax.
IRS Form 1040-NR - https://www.irs.gov/forms-pubs/about-form-1040-nr
In this case you may be able to use a TurboTax partner, Sprintax, to assist you with the Form 1040-NR - https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-forms/turbotax-handle-form-1040-nr-n...
