But you argued before that CSV is not meant for at least one of your examples. If I want to process it in R, I need to know the datatype of the columns. And thi

But you argued before that CSV is not meant for at least one of your examples. If I want to process it in R, I need to know the datatype of the columns. And this is indeed a regular painpoint in this workflow. For displaying it _might_ work, if you just want to dump an ugly mess. If you don't want to do that, you need to know the type of the values, so you can e.g. right-align numbers in columns. So CSV clearly fails in your examples. You might argue that we don't have a better format that has support in so many applications. That might be true, but doesn't make CSV good or makes any of these failings not failings.