Solid Edge Viewer shows .par file as blank page

Experimenter
Experimenter

Hi,

Maybe someone has a tip to me,  I want to open a .par file an i can see the preview in Explorer, but in SolidEdge Viewer nothing is displayed. Other par files appear error free.

With this file it' s the same on different Computers. I've tried SolidEdgeViewer ST7, ST7+MP8, ST8 with all the same Problem.

Originally the .par file ist created with ST7+MP8.

What can i do? plz help 8)