Copy and paste cmd.exe in xpacker folder. Open it and type unrrbpe
Then press space. Now copy the bpe file in cmd, press space and do the same but now delete .bpe and write .yobj
Press enter and you have done
or u can do is...uncompress the bpe with quickbms...change the unpacked file extension to bpe again with advanced renamer and then change the extension to .yobj....
done.