You cant import that coinbase data dump into ProSeries an expect it to be able to digest it.   

Have the client signup with CoinTracker (or a similar service) and it will turn that mess from Coinbase into a usable 8949 style report form that can be entered into PS.

I just let their next tax preparer figure it out.

At my age, I'm not interested in dealing with people who would gamble on that stuff.

My client has 50 pages of 8949 from Coin Tracker. He also has a Schedule D. I have tried to Summarize the numbers on his 8949 with the idea of transmitting the paperwork to IRS. However, it requires a date of sale on the software. Any ideas how to circumvent this and is this even the correct process. 

Thanks! You are a Life Saver😎

Thank you for the Input, I just got 64 pages of 8949 -- Does it matter that they are short-term transaction not reported on a 1099B ( box C checked) 

Another option might be:   show "various" in the sales date and before e-filing unmark the check for errors.  Attach the spreadsheet with all the transactions on it as a pdf.      AM thinking though, (as suggested) using a date shown for most of the transactions might be the better way to do it. "Various" might be a trigger...  I found dealing this has not been worth the headache.  Will step aside next tax season...