I used Koinly to generate my CVS file for Turbotax and I think it's missing some things because I am asked to review almost all of the 500 entries.
It usually asks: How did you receive this investment?
I answer: I purchased it
Then it gives me 2 options: I paid sales expenses that aren't included in the sale proceeds reported on the form
None of these apply (I check this one)
The Koinly CVS layout:
Amount, Currency Name, Purchase Date, Date sold, Cost Basis, Proceeds