Alright, here's what you need to do. Open the .gvi (or .gvp, that's what they are for me) in Notepad/Wordpad. Copy from where it says url: to &begin. Then paste it into your internet browser, and it should download an AVI. Then the converter that came with it should work.
If not, there is an GVI to AVI converter, I'm not sure where...
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