I love Observable notebooks, I use them all the time. The tool is the first thing I reach for when I have data. Except when the data comes in an Excel file format, which tons of government data files do. And at that point I have to reach for Excel LibreOffice just to turn a file I downloaded into a CSV, which I can upload into a notebook. Or at least that's what I was doing before I stumbled across this notebook showing support for .xlsx files. The notebook looks like it was originally create...
