We are not clear if you are asking about importing a .txf K-1 file into Turbo Tax or how to create a .txf file to give your people to import into their personal tax return? And what program are you using to create the business return and K-1s?
You can not use Turbo Tax to create the .txf files. You need to use another accounting program .
Info on Importing Tax Exchange Format (.txf) files, see
https://ttlc.intuit.com/community/entering-importing/help/how-do-i-import-from-the-txf-file/00/25642
.txf files cannot be imported into TurboTax Online or TurboTax Business.
How to import a .txf file to Windows Desktop,
https://ttlc.intuit.com/community/entering-importing/help/how-do-i-import-from-the-txf-file/00/25642
TurboTax CD/Download software (except TurboTax Business) can import from any program that creates .txf files, such as Quicken or Quicken Rental Property Manager.
