Working with CS 6 files in 2022

[Calvin24833618scha]

I am trying to work with some old CS 6 files but they won't let me print in 2022.

Erorr message unidentifiable. Is there a way to convert?

[Warren Heaton]

Photoshop files don't version out like, let's say, Illustrator files do.  You can make a basic change and save - like hide layer then show it again - to save the PSD file in the current version.

It sounds like you want to go through the troubleshooting steps for printing.

Troubleshoot Photoshop printing problems (adobe.com)

[TheDigitalDog]

You're trying to print what kind of documents? They open right? What if you save as... Then select TIFF, reopen and try printing. Or try this: 

Quit Photoshop if running.
Relaunch Photoshop and open the file that you want to print.
Press the Spacebar on your keyboard before you click File > Print. This process resets printer preferences that have been written into the image.

See: https://helpx.adobe.com/photoshop/kb/troubleshoot-printing-problems.html