How do you install games on my samsung soul?

I've downloaded some games from a website but can't work out how to install them on the phone. The files downloaded are jar files, i've never had a samsung phone before and it's all new to me.|||Hi i have not tried the soul but all other samsung phones you can't self install games.|||Hey, then how do you add in games with other samsung models? maybe it might work for my samsung soul?

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