Hi Chris,
The Bloch cello demo was created more than 10 years ago. Sadly, the .fxb instrument preset file format seems no longer to be compatible with the current versions of the Vienna Instrument program.
You can still learn a little from the midi file. Notably, the frequent switching of articulations via keyswitches and the shaping of phrases with the midi Expression controller.
More recent "tutorials" should use Vienna Ensemble compatible files. I also included Cubase project files which will open the entire project. No fuss, no muss. You can download a free trial version of Steinberg's Cubase 10 from their website.
Finally, I recommend checking out VSL's MIRx software. It will instantly give you a more professional sound. It's like having a world-class mixing engineer (Dietz) in a single plug-in.
Happy experimenting and music making.
Best wishes,
Jay