Both programs are excellent. The project instructions will often refer to QP by default, but the techniques and concepts are usually the same for both packages. Old fashioned paper spreadsheets were often very large requiring one to have a large table where you could spread out the sheets and go at them with pencil and eraser. The newer electronic spreadsheets created within QP and EX can also be very extensive but they are easy to view, develop, modify and print on a personal computer. And people have found that wherever there is a lot of organized numeric information, there is a graph just waiting to be created.
Spreadsheet software can help make graphs very efficiently.
You will see how graphs provide a powerful visual method of conveying the meaning of a bunch of numbers. All modern software packages should have a tutorial. If you are using some software for the first time, look under the Help menu for the tutorial. Unfortunately, neither QP nor EX have included an on-line tutorial with the current versions. So, you will need to get an overview from this handout or from a presentation by your instructor.