When I upload the CSV file from coinbase to turbo tax it shows error messages " No headers found in this file ". Does anyone know how to fix this?

Thank you Cynthia. This works as well as using any of the mapping functions they have for specific exchanges. However, it still offers me 780 errors in Fedral Review asking me to go through each trade to select whether I purchased it or was given it - even with a cost basis sitting there for them to see. Not taking a day off to do that.

TurboTax: Seems there should be one more column to import: Method of Acquisition