How do you export files? Before beginning, make sure you are using TurboWarp https://turbowarp.org/655293083. This is because Scratch won't allow you to export lists on the project page, while TurboWarp does allow you to do so. Begin by pressing 'S' to save your list into an improved one. The output won't look pretty inside a Scratch list, so we need to export it. Right-click the output list and click 'export'. You'll then get the output file in your downloads. Click it, and boom! You're done. Using TurboWarp, you can also import files to the input list.
Exporting scratch lists to text files makes the files look basic, but easy to re-import to scratch. With this project, the lists will look far more identical to the Scratch lists. Looks a lot more pleasing than exporting normally. An hour after launch, I had to fix a bug where inserting, replacing, and deleting all happen to the output list and not the input list. If there are any more bugs found, leave them in the comments.