Needed Windows console tool is:

extract-xiso.exe

Use following commands to convert to needed files:

./extract-xiso.exe -x ./gamename.iso

Option -x will convert a iso image to an game folder with XBE files.

./extract-xiso.exe -c ./gamenamefolder

Option -c will convert a XBE game folder back to iso image

Note: not tested yet in fact i have no Windows ;o)

Update: extract-xiso can easily compiled from source. Just look into the XboxDev/extract-xiso github repository.