How do I attach my game to an email?

Hello,

Which file from the folder I created for the game should I attach? And when my friend should place it to be able to able to play?

The exported games, unless using Node-Webkit, must be hosted in order to have full functionality. Therefore, we generally use a free site such as Dropbox and then just send or provide the public url to the exported game.

This is all covered in the manual and there numerous tutorials dealing with playing games offline and using such hosting sites as Dropbox.

As far as I know, you can attach a file but not a folder to an email. I would zip the folder and send the .zip file

Edit: I was assuming you were talking about node-webkit. Else do as zenox98 suggested and upload it to dropbox or a similiar site, then send your friend a link to index.html