Tested using PhotonFileEditor-GL-alpha-0.1c-amd64.msi on English Win7 with Swedish regional settings.
When I tried to enable OGL I got this error:

Successful workaround was to create these directories. (My My Documents is on my D-drive, if that is a clue to what went wrong).
Then I could enable 3D, and I can now zoom and pan around, but no model is seen.

Also, the lowest part of 3D is not entierly understandable:

Thanks for making this software!