Ask HN: Office skills testing that isn't method-specific?

I work for a mid-sized law firm. I'm wondering if people have any suggestion for Office skills testing applications -- most of them seem to have a fatal flaw: they're method-specific. In other words, it'll test you how to open a document, and it will only have one "right" thing in mind, despite there being multiple ways to open a document (Ctrl-O, 'open' toolbar button, etc.). We're looking for testing apps/websites that will accept any method that would actually work in Office. I have no idea how to even Google for this; I'd appreciate any recommendations you might have.