I tried to transfer the "DoorsCS7.8xk" file to my friend's calculator (a TI-82 Advanced, the french counterpart of the the TI-84 Silver Edition), but the following error message appeared:



I tried to rename the file extension, but it still doesn't work... I read some people already use Doors CS on their TI-82 Advanced, so I do hope there's a way to run it on my friend's.

Thank you for reading!

You need the TI-83, not TI-83 Plus, version of Doors CS. Look in the "Other" folder (in the download from https://www.ticalc.org/archives/files/fileinfo/430/43068.html, for example).

It doesn't work It says the file in the "Other" folder is an "invalid file", because TI Connect recognizes it as a TI-84 Plus (and TI Connect CE says it's a TI-82 Advanced)