Mass Import Question (Facebook Group)

I've been tasked with maintaining my school's student website. I'm in class 2017, and there are two classes before mine (2016, 2015).

The students from the previous two years primarily used Kunena to post outlines, and other study materials. The posts in Kunena were a breeze to import into ED, everything went as planned, no problems whatsoever.

The maintenance of the site was lacking during my first year, and subsequently all the outlines from my class were posted to a Facebook group.

I've created a Facebook developers account and have successfully used the Graph API to filter all posts with an attached file. The generated output contains a URL, date, username, and a message.

I'm looking for a way to get this data into ED because I believe that this will directly correlate into a quick adoption rate for the website. I'm imaging a excel spreadsheet which contains the Username, Joomla User ID, Message, Date, URL, and ED Category. Once complete I need a way to import this into ED.

What type of options are available for me to realize this goal?

any help is most appreciated.