I used to pay and download past nba lines in excel format at sportsinsights.com but they no longer sell their database anymore, to carry out my research I need to have the past lines, I know some sportsbooks such as pinnaclesports and Bet365 offer database but they are often too difficult to use (on their sites I have to select multiple criterias to obtain one single result whereas the database provided by sportsinsights is laid out in one excel sheet and past lines are much easier to find)
It would be really helpful if someone could let me know which sites offer or sell the database of past nba lines, thanks.