These types of archives have always fascinated me. One of these days I have to dig into how they set up their "access infrastructure".
Simply storing the data and some kind of power source to access it would work for say, a global EMP, asteroid strike, total war, etc., since it's likely it could be accessed before people lose their connection to current languages. However, if someone finds the data 100,000 years from now, I wonder if they have some type of instruction set that is not language based to allow/assist access and understanding?
If an interstellar visitor found it, they'd likely have the ability to access and translate given their advanced technology. How do you set it up for, as an example, the equivalent of a Bronze Age human to not only access it, but also not somehow destroy it, intentionally or unintentionally? In the Sci-Fi world, there are often "tests" that have to be completed to ensure the species accessing the data have advanced far enough to use it before the door is opened, so to speak.