Another problem in converting xls to xlsb.
Here's a samle xls file. We're trying to convert it to xlsb thru Aspose methods:
Workbook workbook = new Workbook(Test2.class.getResourceAsStream("POLIS-BN_Polis.xls"));
File result1 = File.createTempFile("result", ".xlsb");
workbook.save(result1.getAbsolutePath(), new XlsbSaveOptions(SaveFormat.XLSB));
The result seems to be an invalid xlsb file, because of the warning Excel 2010 shows while trying to open it.