@Lalita202 ,
(a) US taxes for a US person ( citizen/GreenCard/ Resident for Tax Purposes ) is on world income ( including digital assets ( and/or income therefrom ). US , at least for tax purposes , does not recognize dual citizenship to the extent that it does not interfere with tax treaty with that " other" country.
(b) I don't know for sure but I think TurboTax does not deal with .csv files directly. You would have to use a spreadsheet (or otherwise ) to create the final figures as to earnings from your trades and/or earnings from the digital assets and holdings thereof.
(c) Note that you have convert all incomes to US$ using conversion factors from reputable sources ( US Treasury / IRS/ Yahoo Finance etc. etc. ), generally using dollar of the day . Just keep good records of the figures and conversion factors you used.
(d) if the "other" country also taxes the incomes and there is a tax treaty in effect at the time along with "double" taxation clause, those foreign taxes may be eligible for Foreign Tax Credit / deduction. There is ample material/discussions on this subject on this forum.
Is there more I can do for you ?
