Spring + xls and doc

I can’t download xls and doc files (old Office), the file is loaded, but it is empty and the message version pops up. With xlsx and docx everything is fine. Here is the code:

@GetMapping("getFileData/{id}") public void downloadFile(@PathVariable long id,HttpServletResponse response) { log.info("\n\nGET: /user/getFileData/"+id); File file = service.getFile(id); byte[]fileBytes = null; try(OutputStream os = response.getOutputStream()) { if(file.getType().split("/")[0].equals("image")){ fileBytes = service.loadImageFromFile(file.getFileName()); response.reset(); response.setContentType(file.getType()); response.getOutputStream().write(fileBytes); }else if(file.getFileName().split("\\.")[1].equals("pdf")){ fileBytes = service.loadFileFromFile(file.getFileName()); response.reset(); response.setContentType(file.getType()); response.getOutputStream().write(fileBytes); }else if(file.getFileName().split("\\.")[1].equals("xls")){ response.setHeader("Content-disposition","attachment; filename=" +file.getFileName().split("/")[2]); response.setContentType(file.getType()); HSSFWorkbook workbook = service.loadXLS(file.getFileName()); response.reset(); response.getOutputStream().write(workbook.getBytes()); }else if(file.getFileName().split("\\.")[1].equals("xlsx")){ response.setHeader("Content-disposition","attachment; filename=" +file.getFileName().split("/")[2]); response.setContentType(file.getType()); XSSFWorkbook workbook = service.loadXLSX(file.getFileName()); workbook.write(os); os.flush(); }else if(file.getFileName().split("\\.")[1].equals("doc")){ response.setHeader("Content-disposition","attachment; filename=" +file.getFileName().split("/")[2]); response.setContentType(file.getType()); HWPFDocument document = service.loadDOC(file.getFileName()); document.write(os); os.flush(); }else if(file.getFileName().split("\\.")[1].equals("docx")){ response.setHeader("Content-disposition","attachment; filename=" +file.getFileName().split("/")[2]); response.setContentType(file.getType()); XWPFDocument document = service.loadDOCX(file.getFileName()); document.write(os); os.flush(); } } catch (Exception e) { log.info("\n\n"+e.getMessage()); return; } log.info("\nReturn: OK"); }