try.

  data:
    i_control     type ref to i_oi_container_control,
    i_document    type ref to i_oi_document_proxy,
    i_spreadsheet type ref to i_oi_spreadsheet.

  call method c_oi_container_control_creator=>get_container_control
     importing  control = i_control.

  call method i_control->init_control
  exporting
    r3_application_name      = '[censored]'
    inplace_enabled          = 'X'
    parent                   = cl_gui_container=>screen0.
"   register_on_close_event  = 'X'
"   register_on_custom_event = 'X'

  call method i_control->get_document_proxy
  exporting
    document_type   = soi_doctype_excel_sheet
  importing
    document_proxy  = i_document.
...

** selection screen:
PARAMETERS filepath LIKE rlgrap-filename DEFAULT 'C:\Form.xls'.
**
START-OF-SELECTION.

DATA: url LIKE rlgrap-filename.
DATA: error TYPE REF TO i_oi_error,
       retc TYPE soi_ret_string.
DATA: i_control     TYPE REF TO i_oi_container_control,
      i_document    TYPE REF TO i_oi_document_proxy,
      i_spreadsheet TYPE REF TO i_oi_spreadsheet.

CONCATENATE 'file://' filepath INTO url.

CALL METHOD c_oi_container_control_creator=>get_container_control
       IMPORTING  control = i_control.

CALL METHOD i_control->init_control
       EXPORTING
        r3_application_name  =  'REPORT_NAME'
            inplace_enabled  =  'X'
                     parent  =  cl_gui_container=>screen0.

CALL METHOD i_control->get_document_proxy
       EXPORTING  document_type = soi_doctype_excel_sheet
       IMPORTING document_proxy = i_document.

CALL METHOD i_document->open_document
       EXPORTING
         document_url = url
      IMPORTING
                error = error
              retcode = retc.

CALL METHOD i_document->execute_macro
       EXPORTING
        macro_string  =  'Module1.COP_CEL'
         param_count  =  0
       IMPORTING
               error  =  error
             retcode  =  retc.