Need to get data off My Passport Ultra

I just got my Macbook Pro reformatted and it’s a blank slate. I want to get everything I saved onto My Passport Ultra back onto the computer, putting it back the way it was - settings, applications, and all. There’s just one little problem - I can’t figure out how to do it, and I can’t find any resources telling me how to do it. Help!

Hello and welcome to the WD Community. 

You need to user the same software that you used to backup your files to restore them back to the computer.

If you used time machine, you will need to use that app to restore the files.