How do I Open this File?

Hello,

My friend gave me these files they end in .dmg.

He had to split the original file into 17 parts as the original file was too big. He said that I would have to merge them but I have no idea how to do this. I'm new to the Mac world; and any help would be much appreciated.

Thanks.

This is very likely something a) illegal or b) an attempt to install a keylogger on your Mac.

I'd just politely refuse the offer if I were you.

If he split them ask them how . . . and use the same tool to merge them!

It's nothing dodgy, one of his friends made a game. I really wanted to play it. So any ideas on how to actually merge them?

Hi..
Try this..

Slices | Split large files on your Mac