Process to open illustrator file in folder

Hi All,

I was wondering if there is a way to open an illustrator file where it chooses one of these files located in the screenshot.

I can do this by using get files to get to the folder and then using random number at the end of the folder to randomly choose one of these files but I am not sure how to open. I know there are methods involving open application and selectors but not sure the best way in this case.