Open the extracted folder and look for FactoryGame.exe (usually located in \FactoryGame\Binaries\Win64\ ).
The only official ways to download Satisfactory are through the Epic Games Store or Steam . File: Satisfactory.v0.7.0.4.zip ...
Right-click the .exe and select Run as Administrator to ensure it has the necessary permissions to save game data. Open the extracted folder and look for FactoryGame