You can make your own files with the step on this article How to Emulate TI-Nspire CX CAS with Firebird on Mac, Windows or Linux or you can download the sample files at the end of the article.
+ Download the latest version of firebird here (Android or iOS). Firebird can emulate TI-Nspire CX, TI-Nspire CX CAS, TI-Nspire Touchpad and TI-Nspire Touchpad CAS.
Firebird is a multi-platform TI-Nspire graphing calculator emulator for Linux, Windows, Android, Mac OS X and iOS.