Trainner making and save editing

[Ryanfaescotland]

Hey guys how's it going?

I've had a search about the site but can't seem to find information on how the checksum is calculated at the beginning and end of the TTD save files.

I found the location (just after the 47byte title at the start and another at the end) thanks to orudge but unfortunatly my knowledge of the game is not at the point where I can work it out myself yet.

Anyone able to help me out and tell me how it's calculated or able to point me in the direction of where I can find it out?