Good day,
I have read your situation and requirement, I have more than 15 years in IT programming and solving some cases of web scrapping (nested pages and save it to database and also excel files), so please let me try to help you for the case.
Web scraping could be proceeded with many methods (e.g: background auto, chrome extension, client side/server side, etc). So, it will be great if we can have further discussion so that we can discuss which methods are best suit for your situtaion.
It will be a short time of further discussion then I will create and give you a video of progress/final one for your specific case, and finally decision is on yours.
Thank and best regards,