[NicuCalcea]

Another issue the author didn't mention, but I sometimes encounter, is that when you copy richly-formatted tables to paste in Excel or some other software, it often includes unwanted HTML tags. I usually have to use regex or at least a search and replace to make the table sortable and filterable.

I imagine this could similarly be an issue with screen readers, but haven't tested it.

[potatoicecoffee]

thats why all data should just be presented in an excel pivot table from the start

[NicuCalcea]

I certainly wouldn't mind more websites, especially government ones, offering a CSV download option along with their fancy tables.