Edexcel admirably give you access to detailed question by question data from their Maths exams with the use of Results+. However I have always found that it does not come in a format that is particularly useful for teachers or individual pupils.
I have created a spreadsheet that analyses the data at a class and individual level and presents both in what I hope is a helpfully colourful manner.
To use the spreadsheet you need to download the paper analysis from Edexcel for Paper 3 & Paper 4. Copy and past the raw data into the data entry sheet and watch the magic happen on the other sheets. The individual sheet should be sized so that you can print the data for each child on 2 sides of A4 paper.
I hope this is of use to other Maths teachers / leaders. Please feel free to adapt / share as you see fit.
Any questions, feel free to leave me a comment here. File here: http://db.tt/xevYyYl (data included is anonymised version of my own so you can see what it should look like).