CSV does not write data to a string, how to fix it?

Question

Python

The code

import requests
from bs4 import BeautifulSoup
import csv

URL = 'https://au.ru/user/Gruz600/shop/computers/components/motherboard/'
HEADERS = {'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.116 Safari/537.36', 'accept': '*/*'}
HOST = 'https:'
RUB = ' руб'
FILE = 'motherboard.csv'

def get_html(url, params=None):
    r = requests.get(url, headers=HEADERS, params=params)
    return r

def get_pages_count(html):
    soup = BeautifulSoup(html, 'html.parser')
    pageination = soup.find('div', class_='au-pager__wrapper').find(class_='au-pager__pages').find_all('a')
    if pageination:
        return int(pageination[-1].get_text())
    else:
        return 1

def get_content(html):
    soup = BeautifulSoup(html, 'html.parser')
    items = soup.find_all('div', class_='au-lot-list-card')

    motherboard = []
    for item in items:
        price = item.find('span', class_='au-price__value')
        if price:
            price = price.get_text().replace('\xa0', '')
        else:
            price = 'Цену уточняйте'
        motherboard.append({
            'link': HOST + item.find('a', class_='au-lot-list-card-title-link').get('href'),
            'title': item.find('div', class_='au-lot-list-card-title').get_text(),
            'price': price + RUB,
        })
    return motherboard

def save_file(items, path):
    with open(path, 'w', newline='') as file:
        writer = csv.writer(file, delimiter=';')
        writer.writerow(['Ссылка', 'Название', 'Цена'])
        for item in items:
            writer.writerow([item['link'], item['title'], item['price']])

def parse():
    html = get_html(URL)
    if html.status_code == 200:
        motherboard = []
        pages_count = get_pages_count(html.text)
        for page in range(1, pages_count + 1):
            print(f'Парсинг страницы {page} из {pages_count}...')
            html = get_html(URL, params={'page': page})
            motherboard.extend(get_content(html.text))
        save_file(motherboard, FILE)
        print(f'Количество лотов: {len(motherboard)}')
    else:
        print('Error')

parse()

I can't figure out why it doesn't write data to rows, but inserts them all in the first column.
The code responsible for creating the csv file is in def save_file(items, path):
All data is sculpted into one column.

Answer 1

1) The separator is correct (for Win version of Excel). Try adding a line to the beginning of the file
sep=;
2) Try other separators - comma, tab, space.