A Level Math Edexcel SolutionBanks
You can download the pdfs in multiple forms for your convience.
Seperate: Download a zip file of all problems seperated in every file.
By Chapter: Download a zip file of all chapters seperated in every file.
All in One File: Everything in one file
Program: A very neat program I built myself that allows you to select chapter, section, problem number and *POOF* solution appears.