Exporting tables to Excel, Clipboard with headers doesn't work when using filtering at the top

[PrzemyslawKlys]

While exporting the tables to Excel the headers of the tables are missing. The filer location for the tables is on the top. That might be the problem? I was also looking for a way while copying rows to clipboard to copy the headers as well. Is there a way to achieve that?

Originally posted by @swordfish291 in https://github.com/EvotecIT/PSWriteHTML/discussions/344

Solution to implement: https://datatables.net/forums/discussion/comment/214981#Comment_214981