When I tried to download the TXF file for Form 8949, I received an error message “The worksheet which IB prepares to assist with completing Form 8949 is compiled in an IRS compliant format and may contain transactions having IRS gain/loss adjustment codes which TurboTax does not support." There is no TXF file for download. The CSV file, however, is available. I have tens of thousand of transactions in 2019 which makes manually inputting them into Turbotax impossible. Is there a way to convert the CSV file into a TXF file so that I can import it into Turbotax? Thanks!