Конвертировать XLTX в XLS

    // For complete examples and data files, please go to https://github.com/aspose-cells-cloud/aspose-cells-cloud-android/
        import java.io.File;
        import com.aspose.cloud.cells.api.*;
        public class Conversion {
            public static void main(String[] args) {
                String name =  "Book1.xltx";
                String format = "xls";
                String password = null;
                String outPath = null;
                String destFile = "DestFile.xls";
                try {
                    CellsApi cellsApi = new CellsApi(System.getenv("ProductClientId"), System.getenv("ProductClientSecret"));
                    File response = cellsApi.cellsWorkbookPutConvertWorkbook(new File(name), format, password, outPath, null,null);            
                    if(response.canRead())
                    {
                        if(response.exists()){
                            response.renameTo(new File(destFile));
                        }                
                    }
                }
                catch(Exception exception )
                {
                    System.out.print(exception);
                }
            }
        }