I know its not supported, I don't care, as all I want to do is access historic data easily.

You came up with the ridiculously convoluted data retrieval system, that no doubt an intern came up with because no self respecting software bod would allow their name to be put to such an abysmal 'thing'.

An so what if someone wants to use a program that isn't 'supported'. HMRC allow you to keep accounts on a spreadsheet and report VAT etc with bridging software.