You can use Google Sheets with an Add-On like "Magic JSON".

For example, I quickly created this sheet: https://docs.google.com/spreadsheets/d/15TjWWvj46HNQ101KORtsnWR3xLjZCNyMX2kK1AsIAN0/edit?usp=sharing

Now, I'm not sure if it will update automatically or not (guessing it won't), but you can just re-import using the Magic JSON Add-On when you need/want it updated.

Hope that helps!

Edit: If it was helpful, here's my XRP address rfFdEnprddrvRP7FnxKeSWkGFfjQ5oXxbq