ABAP2XLSX problem downloading file

Hi, all.

I'm using ABAP2XLSX, i've created this simple test program.

The file is downloaded but when I open the file MS Excel is showing a message:
"We have encountered a problem with the content of "my_file.xlsx" . Do you want us to try to recover as much content as possible? If you trust the origin of this book, click Yes."

And then a message:
"Removed part: /xl/tables/table1.xml, part with error of XML. Line 1 column 202.

This is my code:

*&---------------------------------------------------------------------*
*& Report  ZTEST_ABAP2XLSX
*&
*&---------------------------------------------------------------------*
*&
*&
*&---------------------------------------------------------------------*

REPORT  ztest_abap2xlsx.

TYPES:
  BEGIN OF tys_table,
     field1 TYPE string,
     field2 TYPE string,
     field3 TYPE string,
     field4 TYPE string,
   END OF tys_table .
TYPES:
  tyt_table TYPE STANDARD TABLE OF tys_table.

DATA:
 ls_table            TYPE tys_table,
 lt_table            TYPE tyt_table,
 ls_table_settings   TYPE zexcel_s_table_settings,
 lo_worksheet        TYPE REF TO zcl_excel_worksheet,
 lo_excel            TYPE REF TO zcl_excel.


ls_table-field1 = 'Expedient'.
ls_table-field2 = '123123123'.
APPEND ls_table TO lt_table. CLEAR: ls_table.
ls_table-field1 = 'Description'.
ls_table-field2 = 'My description'.
APPEND ls_table TO lt_table. CLEAR: ls_table.
APPEND ls_table TO lt_table. CLEAR: ls_table. "Empty line
ls_table-field1 = 'VENDOR'.
APPEND ls_table TO lt_table. CLEAR: ls_table.
ls_table-field1 = 'ID'.
APPEND ls_table TO lt_table. CLEAR: ls_table.
ls_table-field1 = 'Type'.
ls_table-field2 = 'V'.
APPEND ls_table TO lt_table. CLEAR: ls_table.

CREATE OBJECT lo_excel.
lo_worksheet = lo_excel->get_active_worksheet( ).
lo_worksheet->set_title( ip_title = 'Vendor' ).

TRY.
    ls_table_settings-top_left_column = 2.
    ls_table_settings-top_left_row    = 2.
    CALL METHOD lo_worksheet->bind_table
      EXPORTING
        ip_table          = lt_table
        is_table_settings = ls_table_settings.
*          iv_no_header        = abap_true.
  CATCH zcx_excel.
ENDTRY.

DATA:
    lv_filename         TYPE string,
    lv_folder           TYPE string,
    lv_xdata     TYPE xstring,
    lv_bytecount TYPE i,
    lt_raw_data  TYPE solix_tab,
    lo_writer    TYPE REF TO zif_excel_writer.

CALL METHOD cl_gui_frontend_services=>directory_browse
*   EXPORTING
*     window_title         =
*     initial_folder       =
    CHANGING
      selected_folder      = lv_folder
    EXCEPTIONS
      cntl_error           = 1
      error_no_gui         = 2
      not_supported_by_gui = 3
      OTHERS               = 4.
  IF sy-subrc <> 0 OR lv_folder IS INITIAL.
    RAISE cancelar.
  ENDIF.

CONCATENATE 'EXPEDIENT' 'Test' INTO lv_filename SEPARATED BY '_'.
  CONCATENATE lv_folder '\' lv_filename '.xlsx' INTO lv_filename.

CREATE OBJECT lo_writer TYPE zcl_excel_writer_2007.
  lv_xdata = lo_writer->write_file( lo_excel ).
  lt_raw_data = cl_bcs_convert=>xstring_to_solix( iv_xstring  = lv_xdata ).
  lv_bytecount = xstrlen( lv_xdata ).

cl_gui_frontend_services=>gui_download( EXPORTING bin_filesize = lv_bytecount
                                                    filename     = lv_filename
                                                    filetype     = 'BIN'
                                           CHANGING data_tab     = lt_raw_data ).

------------

Any tip?
Thanks