To make downloading easier for customers that want a copy of all the Scalextric service sheets on their computer (for quicker browsing) we've created a single zip file containing all the service sheets we have.
Note that this includes a lot of old service sheets (covering cars and spares no longer available) and superceded service sheets. So they won't be of use or interest to everyone.
As we add new service sheets to the website we'll create a new complete zip file as well as an upgrade zip file for customers that have already downloaded the complete file.
So to start with you should download the latest complete zip file. When a new complete zip file is available just download the relevant upgrade zip file (rather than downloading the entire complete zip file again).
Hopefully that all makes sense, if you have any questions please email us.