How to create an opening video

I am new to this and I don’t know how to personalize the opening video with pictures. How do you do this? After I download the file and open it, I really do not know what I need to look at or open. It does not give me an option to personalize or change anything. Please help

Video tutorial are available in almost all projects. If the project you bought doesn’t have a video tutorial, You are able to send an e-mail to the author.