unsetExportExcel
unsetExportExcel(void)
The method unsetExportExcel is removing only the "Excel" export button from the datagrid.
Example
At the below example press the button "Export" to see that we have only one option available.
$crud->setTable('customers');
$crud->setSubject('Customer', 'Customers');
$crud->columns(['customerName','phone','addressLine1','creditLimit']);
// Removes only the excel button on export
$crud->unsetExportExcel();
$output = $crud->render();