Would love to! There's a library called Math.NET that I wanted to look into, but never got around to it (plus, I forgot 99% of the math I learned in college so wouldn't know how to use it). Can you get in touch via email: antonio [at] querystorm.com?
It looks like I was using a pre-release version of QueryStorm while I was writing the blog post. I just released that version so if you restart Excel you should get an "Update available" button in the QueryStorm ribbon in Excel.
Could you update and post back if that fixed the problem?
Another way of "fixing" it would be to replace the following line:
(excel.Selection as Range).WriteTable(files, "myNewTable");
with this line:
Write(files, "myNewTable");
The Write method is available globally (it's not a method that belongs to a class). This is a trick specific to C# scripts (would be illegal in regular C#).
The documentation does lack detail in some areas, which I basically cover by answering questions via email. I do need to invest time every so often to update and extend it.
I like that a gifs shows so much in very little space, but I take your point about it being distracting. Regular mp4 videos you can play/pause explicitly might be a better option for the future.