3] View JSON files with a7 JsonViewer Another tool we suggest you look at is a7 JsonViewer for Windows devices. From the name, it is clear this is a viewer; therefore, one should not attempt to ...

Of course once I post this I had a kind of lightbulb moment. When writing a new file just write a List<> of a single item, and then the serilizer creates the JSON array and not a single item.