With this file you are able to design your own custom cutscenes.
one of the "custom cutscenes" is supposed to play the Video: stronghold 2/ui/video "storybook 2" video, which can easily be changed.
You only can open this in Mapeditor with this tool:
https://www.stronghold-nation.com/downloads/file/8-sh2-map-unlocker/
it seems i can't see map in map editor
You need to unlock it with the map unlocker: https://www.stronghold-nation.com/downloads/file/8-sh2-map-unlocker/
:P
[Edited by Lord_Chris on 2nd Apr 2018 11:27:13]