This program works as a file explorer, allowing several functions and actions, manage files within the console and, probably the most important, it gives you the possibility of creating backups formatted as xIso. Xbox Commander is an especific program for Xbox users.Here's an example (using unix tools) for extracting the game-data with redump: dd if=game.iso of=game_data.iso skip=387k bs=1k extract-xiso -x game_data.iso (Note that you should already be able to use the game_data.iso in XQEMU)
