[feat] TreeList - export to excel

[Bykiev]

Export to Excel is very old issue, but still is not in a roadmap. I don't know why it's so difficult to implement, but it's still not in TODO list.

[markallenramirez]

Hello,

We consider TreeList export an essential feature, and it is definitely a part of our long-term development strategy. We'll update our Roadmap for next year if we decide to work on this feature.