how to convert xls to xlsx

Question

I have some *.xls(excel 2003) files， and I want to convert those files into xlsx(excel 2007).

I use the uno python package, when I save the documents, I can set the

Answer 1

I tried @Jhon Anderson's solution, works well but got an "year is out of range" error when there are cells of time format like HH:mm:ss without date. There for I improved the algorithm again:

def xls_to_xlsx(*args, **kw):
"""
    open and convert an XLS file to openpyxl.workbook.Workbook
    ----------
    @param args: args for xlrd.open_workbook
    @param kw: kwargs for xlrd.open_workbook
    @return: openpyxl.workbook.Workbook对象
    """
    book_xls = xlrd.open_workbook(*args, formatting_info=True, ragged_rows=True, **kw)
    book_xlsx = openpyxl.workbook.Workbook()

    sheet_names = book_xls.sheet_names()
    for sheet_index in range(len(sheet_names)):
        sheet_xls = book_xls.sheet_by_name(sheet_names[sheet_index])
        if sheet_index == 0:
            sheet_xlsx = book_xlsx.active
            sheet_xlsx.title = sheet_names[sheet_index]
        else:
            sheet_xlsx = book_xlsx.create_sheet(title=sheet_names[sheet_index])
        for crange in sheet_xls.merged_cells:
            rlo, rhi, clo, chi = crange
            sheet_xlsx.merge_cells(start_row=rlo + 1, end_row=rhi,
            start_column=clo + 1, end_column=chi,)

        def _get_xlrd_cell_value(cell):
            value = cell.value
            if cell.ctype == xlrd.XL_CELL_DATE:
                datetime_tup = xlrd.xldate_as_tuple(value,0)    
                if datetime_tup[0:3] == (0, 0, 0):   # time format without date
                    value = datetime.time(*datetime_tup[3:])
                else:
                    value = datetime.datetime(*datetime_tup)
            return value

        for row in range(sheet_xls.nrows):
            sheet_xlsx.append((
                _get_xlrd_cell_value(cell)
                for cell in sheet_xls.row_slice(row, end_colx=sheet_xls.row_len(row))
            ))
    return book_xlsx

Then work perfect!