filename string or a file-like object open in binary mode c.f., :class:`zipfile.ZipFile` :param read_only: optimised for reading, content cannot be edited
read_only
read_only bool
keep_vba
keep_vba preserve vba content (this does NOT mean you can use it)
data_only
data_only bool
keep_links
keep_links whether links to external workbooks should be preserved. The default is TRUE
rich_text
rich_text bool :rtype: :class:`openpyxl.workbook.Workbook` .. note:: When using lazy load, all worksheets will be :class:`openpyxl.worksheet.iter_worksheet.IterableWorksheet` and the returned workbook will be read-only.