Hello im Nelson Morrison, I can do this of create a well formatted excel spreadsheet, And I will do the data entry for the 15 columns and put there the 40 names, and I will put a Macro and a formula to calculate all, and a graph for highest, lowest, mean, median.
I have experience working with excel, I will be able to deliver 6 hours max this project, I worked with big quantities, and worked before with macros, I will use macros, I will do the spreadsheet and send to you, I use several techniques this time, I will put the macro and do a well formatted spreadsheet.
I have over 5 years working in excel, I've started first with data entry, and later i enter to programming in VBA to save time.
Please if you want to discuss further details, contact me; And if you need it ASAP contact me right now I'll be here to solve this job.