XCellRange oRange = (XCellRange)
UnoRuntime.queryInterface(XCellRange.class, oSheet);
XCellRange myRange = oRange.getCellRangeByName("A1:N4");
XCellRangeAddressable oRangeAddr = (XCellRangeAddressable)
UnoRuntime.queryInterface(XCellRangeAddressable.class, myRange);
CellRangeAddress myAddr = oRangeAddr.getRangeAddress();
CellRangeAddress[] oAddr = new CellRangeAddress[1];
oAddr[0] = myAddr;
XTableChartsSupplier oSupp = (XTableChartsSupplier)
UnoRuntime.queryInterface(XTableChartsSupplier.class, oSheet);