When you download a expansion pack for Sims 2?

Question

heres the deal for example if i have sims 2 pets and i just bought night life will it work since night life is older

plz answer my other questions if you can

Answer 1

You're supposed to install Nightlife before you install Pets, so back up your data before beginning installation, just in case.

If you downloaded it illegally off the Internet, you will likely get a glitch in your game; it's better to purchase it.

Answer 2

yes. if u downloaded it from ea games or an official place