It appears that you're facing an issue with opening .ai files in Adobe Illustrator on your Mac. To resolve this, you can try the following steps:
File Association: Right-click on an .ai file and select "Get Info." Under the "Open with" section, make sure Adobe Illustrator 2023 is selected as the default application for opening .ai files. If it's not, select Adobe Illustrator 2023 from the list and click the "Change All" button to associate all .ai files with Illustrator.
Reinstall Adobe Illustrator & Creative Cloud app: If the issue persists, uninstall all the Illustrator version(s) applications using theCC Cleaner tooland reinstall them from theCreative Cloud Desktopapp.
By following these steps, you should be able to resolve the problem and open .ai files directly in Adobe Illustrator without any issues. Let us know how it goes!