I looked through my old Saves and couldn't find them, so I did a little searching on the web and found them on what looks to be a French Sims 4 forum (posted by SimModo_Olive). I downloaded the zip file in the post and loaded the save files up to make sure they were the same ones. They looked right to me!
I made sure I could load all three. I didn't play them, just loaded and saved. I renamed them with "777" in the number so they shouldn't overwrite any saves you already have, zipped them up, and uploaded them to Sim File Share:
I haven't uploaded anything in ages so I hope Sim File Share is still acceptable! Let me know if you have any trouble downloading or opening the files. You'll want to just pop them into your Saves folder but if you're worried about them overwriting something, I would back up your Saves folder first just in case. If you don't have any saves starting with "777" in the file name then you should be okay. :)
Edited to add - here's the text from the post on the French Sims forum translated to English, for anyone who wants to know what these files are!
For your greatest pleasure, we offer you 3 unique pre-recorded games. Each provides a different look at some of the possibilities the game offers and allows you to discover ways of playing that you might not encounter in the beginning of a gaming session.
Bachelor :
Play the life of the rich and influential Rico Bachelor, who knows almost everyone in town. You start at a party in Rattlesnake's Juice Bar, where Rico will have a suggestive conversation with Katrina Caliente. Take advantage of Rico's Flirting emotion, with a Charisma level of 10, and the Romantic character trait to help him achieve his current aspiration of successfully engaging 10 Kisses!
Mad Science:
Enter a world of crazy science with the Malakai brothers. Being twins, these two Rocket Scientists are physically identical - but they couldn't be spaced much further apart based on their personalities. One aspiring to be a Friend to the World, and the other a Public Enemy, explore how these Sims, with very different personality traits and opposing goals, can have significantly different long-term stories.
Power Couple:
Wondering what it's like to have all that? Jump into the life of wealth and power with Ethan and Allyson Poole. Both at the peak of their careers, they have honed most of their skills, earned some great awards, and are even working on their next aspiration. See what it's like to have everything and be good at everything.