def METHOD_NAME(context: Context, book: Workbook) -> None:
    headers: Optional[List[str]] = None
    for idx, row in enumerate(book["Company"].iter_rows()):
        cells = [c.value for c in row]
        if headers is None:
            if "Denumirea completă" in cells:
                headers = []
                for cell in cells:
                    header = str(cell).split(" (", 1)[0]
                    headers.append(header)
            continue
        data = dict(zip(headers, cells))
        parse_company(context, data)
        if idx > 0 and idx % 10000 == 0:
            context.log.info("Read %d companies..." % idx)