yes, especially for Mac please ! I can't find the folder..
Here's a screenshot of all the folders you need to open and where you put the files. Start things off by right clicking the button that launches the Our Life game and choose "Show package contents". Then open all these folders and at the end once you've opened the "game" folder, you put the folder you extracted from the DLC in there. Make sure you extracted the DLC files and that they're not still in a zipped folder. I hope that helps!