Hi, 

I'm working on a grid which has an action cell with buttons, which of course i dont want to export, but when i try to pass a custom column configuration to the export it fallbacks to the grid's one.

I made further investigation on the kendo-react-private repository and i found out that effectively there's a preference for the grid columns rather than custom

more precisely on kendo-react-private>packages>excel>src>ExcelExport.tsx (line 201~206)

const columns = this.extractColumns(
            gridColumns ||
            externalColumns ||
            this.props.columns ||
            React.Children.toArray(children)
        );

this is the piece of code i was talking about.

as you can see if gridColumns has a value is preferred rather than externalColumns

it would be nice to have a property onto the grid column definition stating if that column should be exported or not (best case)

or just preferring externalColumns to gridColumns (base case)