Inappropriate
How do you know a tool is inappropriate until you try it?
Many moons ago on my degree a final year unit was AI. One piece of work set was to program a very simple neural net. We were told we were told the exact spec on the neural net how many nodes etc. I had a head start on others as my dissertation involved neural nets so quickly knocked it up in C.
I wrote 3 more for other students one in Pascal one in Basic and one in Excel. At first glance you would not see Excel as the appropriate tool. But maybe it is because in Excel you can see the nodes changing as the formula runs.
Excel is just a tool yes you can use it inappropriately or dangerously but that is the same with most tools.
Side note today I would not know where to start not touched a neural net since I finished my degree. :(