[vox-tech] Opening Harvard Graphics .prs

[Alex Mandel]

Anyone got any idea how to convert or open a Harvard Graphics for 
Windows file, extension *.prs, if I had to guess it's from the windows 
3.0 days.

I tried the free Harvard Graphics Viewer and it baulked so it must not 
be the most recent version. Then I tried to import to PowerPoint but 
apparently that only works with the Dos Version .sh3 files, so it must 
no be that version.

Googling seems to be getting me nowhere, lets just say the terms are too 
  common.

Thanks,
Alex