excel export with servoyguy_servoycom

Classic Servoy
1

Hi,
we are trying to export Data into Excel using the servoyguy_servoycom - Plugin with the following function:

function onExcelExportTest(event) {
	/**@type {Packages.com.servoyguy.servoycom.JSCOM}*/
	var _excelObject;
	/**@type {Packages.com.servoyguy.servoycom.JSCOM}*/
	var _workBooks;
	/**@type {Packages.com.servoyguy.servoycom.JSCOM}*/
	var _workSheet;
	/**@type {String}*/
	var _fileName;
	/**@type {Array<java.lang.Object>}*/
	var _object;

	if(!plugins.servoyguy_servoycom.isJACOBInstalled()) {
		globals.DIALOGS.showErrorDialog('Excel export error', 'plugins.servoyguy_servoycom.isJACOBInstalled()', 'OK');
		return;
	}

	// excel com-object
	_excelObject = plugins.servoyguy_servoycom.getNewClientJSCOM("excel.application");
	if(!_excelObject) {
		globals.DIALOGS.showErrorDialog('Excel export error', 'plugins.servoyguy_servoycom.getNewClientJSCOM("excel.application")', 'OK');
		return;
	}
	_excelObject.put("DisplayAlerts",false);
	

	
	// create workbook
	_workBooks = _excelObject.getChildJSCOM("WorkBooks");
	_workBooks.call("add");
	
	// add worksheet
	_object = [1];
	_workSheet = _excelObject.getChildJSCOM("WorkSheets", _object);

	// save
	_fileName = "gde_exceltest";

	try {
		var x1 = _workSheet.call("SaveAs", _fileName);  
		var x2 = _workSheet.call("SaveAs", "c:\\temp\\" + _fileName);
		var x3 = _workSheet.call("SaveAs", "f:\\" + _fileName);
		var x4 = _workSheet.call("SaveAs", plugins.file.getDefaultUploadLocation() + "\\" + _fileName);  
	} catch (error) {
		globals.DIALOGS.showErrorDialog('Excel export error', '_workSheet.call("SaveAs", _fileName)', 'OK');
	}
	_excelObject.call("Quit");
	_excelObject.release()
	
	globals.DIALOGS.showErrorDialog('Excel export', 'Fertig, x1=' + x1 + ', x2=' + x2 + ', x3=' + x3 + ', x4=' + x4, 'OK');
}

Testing it in the developer works fine. But on the Application Server it seems, that the command ‘_workSheet.call(“SaveAs”, …)’ doesn’t work. There is no error occuring in the serverlog or anywhere else.
Does anyone have any idea how to solve this problem?

Thank you for your answers.

Winnie