To open a JSON file, you can: Use Notepad++ Use Microsoft ... It’s already available in Windows 10, and it works quite well. WordPad is a blend of Microsoft Word and Notepad.

Alternatively, you can also use the Command Palette feature of Windows Terminal to open the JSON file. If the Open with dialog box pops up for the JSON file, select Notepad in that pop-up and ...

To open this hidden GUI 'Settings' interface ... Keybinding to enable hidden Settings GUI When you save the settings.json file, Windows Terminal Preview will automatically begin using the changes.