The Sims 4 [fitgirl Repack].part03.rar -

You cannot open or install "Part 03" on its own. You must have all parts (e.g., Parts 01 through 10) in the same folder for the extraction to work. How to Install from Multi-Part RAR Files

Once you have finished downloading every part of the repack, follow these steps to get the game running: The Sims 4 [FitGirl Repack].part03.rar

Here is everything you need to know about handling this specific file and completing your installation. What is "Part 03"? You cannot open or install "Part 03" on its own

A .part03.rar file is just one piece of a larger puzzle. Large games like The Sims 4 are broken into several segments (Part 01, Part 02, Part 03, etc.) so that if one segment fails to download, you only have to retry that specific piece instead of the entire 50GB+ game. What is "Part 03"

Understanding Your Download: The Sims 4 FitGirl Repack Part 03