Documentation on importing CSV into cryptotaxcalculator.io
cryptotaxcalculatorin the download CSV prompt.
All transactions starting with underscore are omitted from the CryptoTaxCalculator CSV (i.e. _LP_WITHDRAW). This means these transactions must be imported into CryptoTaxCalculator manually (or ignored where appropriate).
Yes, for CryptoTaxCalculator. The import results I've tested seem to indicate duplicates are detected, but this is only an early estimate. The UI was not explicit that duplicates were detected and safely omitted.