How can i burn a .tax file to a cd?

Did you download the .tax file from online?  Then you would burn it like any other file using your CD burning program.  

no, everything is on my computer.

Then the rest of my answer.  Burn it using whatever burning program you have.  Have you burned to any CD or DVD before?  The tax file should be in your Documents then in a Turbo Tax folder.  They end in .tax2023, .tax2022 etc.  Probably just drag it to the CD in Explorer.  

Or are you on Mac?  

thanks so much.