I think I've done a terrible job explaining. Should we start again?
I think it would be easier to show you what I have so far: my.pcloud.com/publink/show?code=XZVlHLZVMUogqSrCqBubtcGwaCS4f7PBBNk
I've got tables in separate sheets at the moment. I want to combine everything into one big table. The thing that is constant is the regno field. Each table has it and it could be used as the primary key to match data together. What would be the best way to combine everything into one table?