def is_outlook_msg(content):
    """
    Checks if the given content is a Outlook msg OLE file

    Args:
        content: Content to check

    Returns:
        bool: A flag the indicates if a file is a Outlook MSG file
    """
    return type(content) == bytes and content.startswith(
        b"\xD0\xCF\x11\xE0\xA1\xB1\x1A\xE1")