Hi all, posting in case this is useful - we download our AccuClass data through the API (i.e. not through the browser). I've produced a python version, that you're welcome to use here (all the documentation you'll need is in the README file): https://github.com/Holsy312/accuclass-client

This isn't supported by or affiliated with Engineerica, and relies on the old C# API that is unsupported.