Is the California Tax return file a PDF ?

As @SharonD007 mentioned, If you saved your data file, refer to the TurboTax Help article How do I find last year's tax data file (.tax file) on my computer? for more information.

Here are the instructions to find your data file (.tax file) for Windows users:

1. Select the Start menu and select search or use Cortana search if you're using Windows 10.
2. Search for *.tax2022 (or whichever year you are searching for, *.tax2021,*.tax2020, etc.).
   • Don't double-click the tax file in the search results to open it, as this can cause errors.
3. In the left pane of the search results, select the > symbol next to the .tax file you're searching for. This will bring up information about this file in the right pane.
4. In the right pane, select Open file location. By default, TurboTax saves tax files in the My Documents TurboTax folder.
5. After locating the tax file in its folder, open your tax return using the same version of TurboTax for that year.
   • For example, open your 2022 return in the TurboTax 2022 program and your 2021 return in TurboTax 2021 .

Your tax data file (.tax file) is not the same thing as a PDF copy of your return.

A .tax file can only be opened in the TurboTax Desktop software. Because it's stored locally on your computer, we can't retrieve tax data files prepared in the TurboTax Desktop software. E-filing doesn't keep a copy of your return on our servers.