Save/Load Lists!

Save/Load Lists!
Save and load lists!

I think you should just use the .JSON extension.

I thought I could make a custom extension so you can find the file easier.

Snap also uses the json extension when exporting a list. Also, one of the reasons to export a list is to edit in an external editor. It's better to use standard extensions.

Ok, I'll switch it.
EDIT: done.

Yes, I will.