You have the option to summarize your transactions by Sales Category.
IRS requires details to be listed on Form 8949,
or on your own forms (e.g. consolidated 1099-B) which have the same information and in the same manner as Form 8949.
Either way, if you choose to summarize, you have to mail the transaction details to the IRS within three business days of IRS accepting your e-Filed tax return.(unless you have attached a PDF of the transactions details to your e-Filed return. TurboTax does not offer this feature).
Exception: if you summarize Category A or Category D, Form 8949 is not needed for transactions without adjustments. No mailing is necessary.
It sounds like you do not have a 1099-B in which case you don't have Category A or D.
Edit your csv to add a column title row identifying the items from Form 8949. Recommended to rearrange columns in the order shown on Form 8949.
Also put your Name and SSN.
Use the Summary option to enter your subtotals.
After you enter the subtotals, follow the "mailing instructions" for how to file correctly.
Your return will still have Forms 8949 to e-File but they will have subtotals instead of each individual transaction.
