.TNS File

.tns is TI-Nspire Document

Key Features: .TNS File Extension

What's on this Page

The tns file extension is mainly associated with the TI-Nspire, a graphic calculator product family produced by Texas Instruments.

The typical tns file represent documents for the Nspire device.

It can contain texts, spreadsheet data, simple graphics, graphs and more. It looks like a unique, compressed XML based format.

Files with tns file extension can be mainly found as documents for TI-Nspire range of graphic calculators produced by Texas Instruments

Mainly use TI-Nspire software to handle this type of .tns files.

Various utilities for TI devices can be used to transfer *.tns documents from and to computer.

TI-Nspire Document - File openers

Associate the TNS file extension with the correct application. On :
Windows: Right click on any TNS file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.TNS files". Mac: Right click (or Ctrl-click) the TNS file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
Update your software that should actually open .TNS is TI-Nspire Document. Because only the current version supports the latest TNS file format. Search, therefore, e.g. on the Texas Instruments manufacturer website after an available .TNS is TI-Nspire Document update.
To make sure that your TNS file is not corrupted or virus-infected, get the file again and scan it with antivirus software.