Unfortunately, you won't be able to upload/import a K-1 (txf file) into an online version of TurboTax.
If you are able to download the K-1 data into a txf file, you can import it into the CD/Download version of TurboTax. Some firms provide the txf and others do not. See this TurboTax Help article for details: How do I import from the .txf file?
Here is how you would enter the information manually: Where do I enter a K-1 that I received?
