Ask HN: Which format would be the best for an analytics export?

Information: I launched a Twitter account analytics/analysis tool around a month ago (might post it in the Show HN section soon, but no link here). Short description: You can see some basic information like followers, likes & more. On top of that, there are some analysis - of course (for example: most used words, most used hashtags, a graph with the users history (Tweet amount) of the past 12 months, ...). Now that you have an imagination what I'm talking about: A user suggested to compile a list of links the user, which is been analyzed, posted and provide an export function for those links. I'd like to add an export functionality to every part of the analysis and the analysis as a whole. Are there any "standards" for an exported list of links? Any big applications, which provide a way to import a list of links, where I could orientate at? What about the whole analysis export? Is it all about consistency, all okay as far as I don't change the export structure daily? JSON?

So a couple of questions in my mind, thanks for reading and any kind of suggestion or useful information!