Parse.com每周活跃用户，将JSON数据库转换为.csv进行分析

I don't know how to use Parse so I'm open to all ideas. I want to analyze how many weekly active users we have, and would also like to perform "cohort analysis" ie track analytics between two distinct types of users. (like which month they downloaded, how long do they keep the app installed etc). I don't know how to use Parse so I'm open to al