File for Default ISO Template cannot be found

Dear all.

I am doing some test to remove the plot files on und directory and also the previewiso.txt file of APS project.

And when I tried to extract preview iso drawingfrom the design module. It still shows some template.

I wonder where is this template coming from? Is it a file that we can found on the aveva installation directory?

I attached some sample file but please dont mind the detail displayed. My only concern is the iso template.

I hope someone can share information. Thank you.