Actually, nothing can really read xlsx expect from Microsoft themselves. They wanted to get an “open” standard so they could be used in European public administration. But they also did it in a way so that nobody else can really implement their whole standard.

ODT format is way better than DOCX.

It’s not hard to mask them, just lower the microphones from the audience or play something else instead

I also think they were ready for that and they masked it live. It doesn’t make any sense for the presenters to mention the booing if you can’t even hear it in the recording. It must have been very loud.

Wikipedia should start displaying a disclaimer banner that the person has been trying to edit the page