Web application to analyze data from uploaded CSV file

User uploads the file with employees earnings and the app is processing the data inside. Doing simple math (sum, multiply, delete, porcentage) and present it in a nice way - dashboard with standard statistics as diagrams, history, list of best employees. Shows how much time every employee was at work (time provided in CSV file). Shows warnings, triggers etc. Shortly - I need a tool which will help me with analyzing data I have and what I currently do manually.