[Chimera-users] wrl to spider or mrc format

Hello everyone, I'm trying to use this skeleton hand (http://www.cc.gatech.edu/projects/large_models/hand.html) as a teaching tool in electron microscopy. I'm only able to open the file in the wrl format and I was wondering if there is an easy way in chimera to convert that file into a density spider or mrc format. So I can import it and make projections in spider for example. I tried to find on the web a free procedure to convert that wrl, without any success. If you have a clear protocol about how to do that, that would be great Thank you in advance for your help Pierre-Damien COUREUX