Sorting by Date in Exported Excel File

When I export a sheet (Gantt Chart with timelines) to Excel it doesn't seem to sort (e.g. by date) all the rows when indented Task Names are present. It will only sort the highest level Task Name, but I would like to sort all the rows regardless of the Task Name hierarchy.

Is there a solution to do this, or possibly a workaround approach?

Thanks,

Matt