Format to use when exporting a data model, see gda.data_model.DataModel.exportToString and gda.data_model.DataModel.exportToFile
data is exported as an XML structure
data is exported as CSV
data is exported as a human readable table
Format to use when exporting a data model, see gda.data_model.DataModel.exportToString and gda.data_model.DataModel.exportToFile