Firefox has a really nice built in table selection mode I use to copy into spreadsheets all the time. Just hold down CMD (Mac) or Control (Others) and you can select table rows and columns.
In newer versions of Excel, Power Query makes it easy, if you can be bothered to learn Power Query...it doesn't matter if the tables are a bit off, because it is a complete functional-esque language. Like SQL plus easy higher order functions.
PDFs can often be extracted too in a similar way.
I feel exhausted every time I see another thread on HN about what to do when you will not learn Excel & Office because it's for PHBs and secretaries.
If you are a Mac user using Numbers and Safari, you can do this by literally selecting the table, and copy pasting it right into Numbers. I do this quite often.
All sites of this type ( static product description/docs/landing/e.g.) should be thrown on top of Netlify/Vercel/Firebase Hosting/similar.
Zero maintenance, free (well unless your traffic is huge, but then with the maintenance overhead it still usually comes out cheaper), zero security risk ( for you).
