XSpreadsheetDocument xSpreadsheetDocument = (XSpreadsheetDocument)UnoRuntime.queryInterface(
XSpreadsheetDocument.class, xSpreadsheetComponent);
XSpreadsheets xSpreadsheets = xSpreadsheetDocument.getSheets();
xSpreadsheets.insertNewByName("MySheet", (short)0);
com.sun.star.uno.Type elemType = xSpreadsheets.getElementType();
System.out.println(elemType.getTypeName());
Object sheet = xSpreadsheets.getByName("MySheet");
XSpreadsheet xSpreadsheet = (XSpreadsheet)UnoRuntime.queryInterface(