you can fix it, type the file name in lowercase letters, and load, can then be extracted. GPView\Open\name.gp\Extract search for files in the folder c: \ gparch \ EXTRACT Then edit and package. good luck
After fixing the crash problem (root partition C:\) the 2nd problem with GPView was not with the extraction. It was about seeing and extracting blurry images (color palette related). I solved this by copying the folder "2" from "all.gsc" to the GPView directory.
Now I have another problem. MegaPack does not create the .gp files properly. I get blurry results (color palette problem) with all the palette options (0,1,2,3) - what am I doing wrong?