Taking the HTML route, there are a number of Table Generators on the web. I tried this one, a little fiddly at first, this crude first attempt took a few minutes.
The generator writes the HTML needed to display the table. The HTML can be saved as a local file on your computer: no need for a website unless something clever is needed. I saved my example in /home/dave/demo.html, for which the browser URL is file:///home/dave/demo.html. The URL on Windows is similar, but needs the drive.
Dave