I am exporting Fund contacts and all of the funds where they need an endowment report.  However it is NOT possible to only export those that are fund type = Endowment.  You can filter in a query but that does not help in the export - there is no fund type in the export.  This means I must export all funds and manually remove those that are not endowed.  If you can filter in a query you should be able to filter in an export.