Excel Mixer is a add-on for Microsoft Excel that lets you display a chart of data by controlling a slider, the program shows you a graphical view of the section you have choose and it actually memorizes the configuration, so you don’t have to configure each slider every time.
They free version can be downloaded below on the main website but if you are looking for more features, you can purchase the pro version for a few bucks. This will be very useful for giving you real-time view of your data and graphical charts for accuracy.