Feature Request: Export Data Button

[notatallshaw]

Similar to how you can save plotly graphs to PNGs from a button it would be useful to be able to provide a button that saves the data in a table as a csv or excel file. It would be nice if it took in to account of filtering done either via either the frontend or backend.

I don't have any particular opinion on how this should be implemented, e.g. purely JavaScript client side (therefore more magical), or via a callback that the Dash developer must provide an actual file (therefore more customizable).

[eliasdabbas]

Nice idea.
I'd like to also suggest the option of exporting filtered data.

Sometimes the dataset might be huge, and the user doesn't want the whole thing. They might be interested in data where col_x > 10, col_y == ABC, etc. and then export that subset.

[Marc-Andre-Rivet]

Fixed by #499 and available in dash==1.1.0