Basically there appears to be one frame of data for every K in file size which means a 7432K file is around 7400 frames, more or less. This takes quite a bit of time to load. An hour is kinda excessive though. I would CTRL ALT Delete and start over myself. But frankly after trying 3 of them only to see the severe bending errors in the buttocks, eyes and left arms I think they're a waste of my time. There are too many corrections to do by hand.