There is only one file type that uses the .TNS extension:
Calculator program created for TI-Nspire handheld graphing calculators; can include graphs, statistical data, or other application components runnable by the calculator; created by the TI-Nspire desktop software and can be uploaded to the TI-Nspire device and executed after the program is complete.
TI-Nspire documents are often used by students for completing homework assignments and by teachers for teaching graphing principles.
|Texas Instruments TI-Nspire Software||Paid|
Updated: November 6, 2011