Shapefile rings not closing/coordinates note finite

I am trying to repair this shapefile (found here: http://temp-share.com/show/3YgF8Kd4x) so that I can eventually read it in R, which is not currently working because of the following problem:

It was pointed out by a very helpful R colleague that the reason R is not reading the shapefile properly is because the shapefile has infinite (NaN) coordinates in entity 15755.

Now that I know the problem, I'm a bit closer to the solution. However, I have no idea how to go about making the coordinates finite.I've tried running the repair geometry tool in Arc, but it didn't seem to repair the problem...

Thanks in advance.