title: Unable to convert xlsx file to xls using documents4j
body: <p>I have a test case that requires downloading a xlsx Excel file, writing data to it, then saving it.  Using apache poi, I was able to successfully do that.  But now, I need a way to convert that file to xls and text uploading that to our application.</p>
  
  <p>I'm using documents4j to try to convert the file from xlsx to xls.  But it's failing to create the xls file.  So when I run my test, it fails to find the file, and the script fails at that point.</p>
  
  <pre><code>import com.documents4j.api.DocumentType;
  import com.documents4j.api.IConverter;
  import com.documents4j.job.LocalConverter;
  import java.io.File;
  import java.io.IOException;
  import java.util.concurrent.ExecutionException;
  import java.util.concurrent.Future;
  import java.util.concurrent.TimeUnit;
  
  public class File_Converter {
  
      public static void convert_XLSX_To_XLS() throws InterruptedException, ExecutionException, IOException {
          File wordFile = new File("C:\\Users\\Jeff15\\Downloads\\scheduleUpload.xlsx"),
                  target = new File("C:\\Users\\Jeff15\\Downloads\\scheduleUpload.xls");
  
          IConverter converter = LocalConverter.builder()
                  .baseFolder(new File("C:\\Users\\Jeff15\\Downloads\\"))
                  .workerPool(20, 25, 2, TimeUnit.SECONDS)
                  .processTimeout(5, TimeUnit.SECONDS)
                  .build();
  
          Future&lt;Boolean&gt; conversion = converter.convert(wordFile)
                  .as(DocumentType.XLSX)
                  .to(target)
                  .as(DocumentType.XLS)
                  // .prioritizeWith(1000) // optional
                  .schedule();
      }
  }
  </code></pre>
  
  <p>I have the following Maven dependencies:</p>
  
  <pre><code>documents4j-transformer-msoffice-base 1.0.3
  documents4j-api 1.0.3
  documents4j-util-conversion 1.0.3
  documents4j-transformer-api 1.0.3
  documents4j-util-all 1.0.3
  documents4j-local 1.0.3
  documents4j-util-ws 1.0.3
  documents4j-util-standalone 1.0.3
  documents4j-transformer-msoffice-excel 1.0.3
  documents4j-test 1.0.3
  documents4j-transformer-msoffice-test 1.0.3
  documents4j-transformer-msoffice 1.0.3
  documents4j-aggregation 1.0.3
  </code></pre>
  
  <p>I'm not getting any relevant errors.  The script fails when it fails to locate the xls file, and then click an "Upload" button afterwards.</p>
  
  <pre><code>[main] INFO com.documents4j.conversion.msoffice.MicrosoftExcelBridge - From-Microsoft-Excel-Converter was started successfully
  [main] INFO com.documents4j.job.LocalConverter - The documents4j local converter has started successfully
  [pool-1-thread-1] INFO com.documents4j.conversion.msoffice.MicrosoftExcelBridge - Requested conversion from C:\Users\Jeff15\Downloads\scheduleUpload.xlsx (application/vnd.openxmlformats-officedocument.spreadsheetml.sheet) to C:\Users\Jeff15\Downloads\scheduleUpload.xls (application/vnd.ms-excel)
  FAILED: Schedule_xls_File_Upload_Test
  org.openqa.selenium.NoSuchElementException: no such element: Unable to locate element: {"method":"xpath","selector":"//button[text()='Upload']"}
  </code></pre>