I'm back at my computer so I'll look at that sheet again to see what I can find. The mobile view is not great for that kind of thing. CSV = Comma separated values. It'd be something like:
FirstName,LastName,speed,check,shoot,defense
tru,datman,87,67,72,42
tee,jans,64,67,82,88
etc
Over in the tecmo and RBI communities, many of our editors read the data in plain text or can import/export an excel sheet or CSV. It's much easier to work with the data because you can easily copy and paste data from one line to another before importing it into the ROM. It's just another way to edit a ROM.
I'd love to sit and chat with Statto someday about making an updated version of his great editor for NHL94 SNES...