You may download programs, games, and applications from the TI Calculator Programs section. However, you will need a few things first.
You will need these things to download, transfer, and use these programs on your calculator.
NOTE: The calculators listed are the known ones that work. It may be compatible with other TI calculators also.
Cables: If you don't have the cable that came with your calculator and you have a TI-84 Plus or Silver Edition, don't worry. Many regular USB cables will work.
Once you have TI Connect installed and your calculator connected, all you need to do is right click on the .8xp file, and select "Send to TI Device..." Once it finds your calculator (if it doesn't, click Select Device at the top), then click Send to Device at the bottom. It can sometimes take a while, just be patient.