Extract Data from another website into CSV file

I need data to be extracted from two to three websites through robots or crawlers and moved to a pre-formatted csv file. I will provide details of the website to serious bidders. The data size would be around 15000 rows when pulled out. ## Deliverables I will specify the details of the websites. The websites will have links where the data could be three levels deep from the website homepage. Once the right depth is reached the data is to be extracted and put into a pre-formatted CSV file so that the data could be uploaded into another database.