How to quickly copy the content in "open" to Excel?

[MarkhHawking]

[Synthlight]

You don't. There is no sort of multi-dimensional copy or anything implemented.

[MarkhHawking]

OK. Thank you for your reply.

[MarkhHawking]

Manual labor is really extremely painful.

[MarkhHawking]

Hope to be given a direction.

[Synthlight]

I have no intention of supporting this. Excel is not a target format, and is also not multidimensional.

[Synthlight]

There are files that go like this:
(And this starts from a nested table.)

That doesn't fit into a 2D Excel table even one level deep, and this goes three. There are many like this. Excel copy/export will probably never be supported because of this.
Best I can think of is me condensing the nested object into JSON to live as text in the field. If you've got better ideas, let me know, but don't hold your breath waiting on me to do this.