I need some help here

Hi, i really need some help here. I’m just getting started. Well, i downloaded the unity 3d and tried to open a project that i have received from a friend of mine but i can´t find it.
When i try to open it, an error message appears and i just don´t know that do.
The message is : Data folder not found

I hope someone to help me, please. I really need to open it.

Hi there! Welcome to the world of unity!
Do you know if you are trying to open the folder with the assets, or the acctual built game?
If you know your friend sent you the built game, this cannot be opened in unity. You would distinguish bettween this and the acctual project folder by seeing if there is an application in the folder. The folder with a project in it should contain the folders “Assets”, and “Library”. This is the folder you want.
Hope this helps!

Hi.
My friend sent me the built game. So i’ll not be able to open it?
Thank you for help me and i’m so sorry to ask you somethig like that but i’m really trying to learn how to built a game.
Thank you again.

If your friend sent you the built game, then you will not be able to open it in unity.
Ask him to give you the Project folder for the game.
What building a game does is it compiles all the scripts, and puts everything together into a data file and an exe ( or .app) file. This is basically the finished game. To build a game from unity, go to file > build settings and there is a dialog that has all of the options to build your game.