Excel actually has really good JSON import… it's just "hidden" in the Data tab on the ribbon and users don't want to learn how to use it.
I feel so much of what keeps CSV in use is that it's a format that you can relatively easily generate without pulling in a lot of library dependencies and relatively quickly generate something that users can just "double click it opens in Excel".
What the Excel team could really gift to developer humanity at this point is some dumb file extension Excel registers like XLJSON that you could just rename a JSON file to and Excel opens it like a spreadsheet on double click.
I feel so much of what keeps CSV in use is that it's a format that you can relatively easily generate without pulling in a lot of library dependencies and relatively quickly generate something that users can just "double click it opens in Excel".
What the Excel team could really gift to developer humanity at this point is some dumb file extension Excel registers like XLJSON that you could just rename a JSON file to and Excel opens it like a spreadsheet on double click.