final String outExt = getOutputExtension(extension);
            outputFile = createTempFile("cmdextout_" + filePrefix + "_", "." + outExt, tempDir);

            // store to a file
            CopyUtil.copy(in, inputFile);

            LocalConverter.make(officeManager).convert(inputFile).to(outputFile).execute();

                } else {
                    ext = extention;
                }
            } else {
                ext = outputExtension;
            }
            outputFile = createTempFile("cmdextout_" + filePrefix + "_", ext, tempDir);

            // store to a file
            CopyUtil.copy(in, inputFile);

            executeCommand(inputFile, outputFile);