[tsukurimashou]

From the readme:

>Animated GIFs are converted on a one-frame-per-worksheet basis, so you have to step through the worksheets to animate them. I was originally intending using conditional formatting and iterative calc to display these, but unfortunately the Excel team* seem to have single-threaded the calculation of conditional formatting and it was far too slow to render.

* I used to work on the Excel team so one could argue that this is partly my fault.