Invisible models

Support Basics & Interface
1

Hello,
I have downloaded models from official lighting producer. I cannot import any of them succesively. They remain invisible, no matter the scalling.

https://www72.zippyshare.com/v/ciIF048q/file.html

2

Welcome, if you say “invisible, no matter the scaling”, then you can see them in the outliner?
Then select it and then View → Frame Selected (Numpad . ).

3

That site looks sketchy af.