The Spanish for the most part treated the Native Americans poorly. The Spanish were interested in the riches of the Americas, and they had no problem in forcing the Native Americans into slavery so they could mine the gold and the silver for Spain.
The french treated the Native Americans OK because they were trading partners.They also did not try to compete with the Natives for land when the French first came to the engage in seasonal fur trading they immediately established strong trading ties with the local Natives they found there.
Hope that helps!!