how to add personalized name while excel export in kendo?

i have created a kendo grid but while downloading excel template i want to give some suitable name to the excel file . how to deal with it. here is my code.

resizable: true,
                            sortable: true,
                            pageable: Instance.pageable,
                            groupable: Ember.isPresent(Instance.groupable) ?Instance.groupable : false,
                            filterable: true,
                            reorderable: true,
                            toolbar: Instance.toolbar,
                            excel:  Instance.excel,
                            columns: Instance.columns,

how to give my file suitable name??