I've asked the author for a copy of a correct csv or xlsx file, I'll share it if the author responds.
The author has replied to me, and shared these great examples of transparent prices:
https://github.com/CMSgov/price-transparency-guide/tree/mast...
Along with this fantastic guide:
https://github.com/CMSgov/price-transparency-guide
I recommend them to anyone who wants to see good examples of price transparency.