How to change text in an downloaded intro template in 'blender'?

I have downloaded an intro template, it looks cool. But, I am having problem in changing the text to desired one! Can anyone help me out from this problem. I will appreciate the help!

Not much to go on is there !

I have downloaded an intro template
What type of template ? What format (image, 3d model, video, format etc etc etc)

Are you going to share what you have and show us what you want ?