The Files

The sheets we used. Every cell says where its number came from.

Three labels do all the work in them: we measured it, we gathered it, we worked it out. Anything none of those is true of is left for you to fill, and says so.

• Your own box against the cloudcoming

  Put in the task, how often you run it and the machine you are thinking of. It gives you the cost per task each way, and when owning pays back.

  Readable today · on sale October 2026

Every chart a file draws on is already free on the data pages, and will stay there.