[Closed] Export complex matrix to file and get it back

I have a complex matrix

camStates #(camera, objTransform_startrecord, objTransform_finishrecord, hiddenobj_startrecord, hiddenobj_finishrecord, ren_width, ren_height, ren_priority)

where

objTransform_startrecord = for i in objects collect DataPair i i.transform 
             hiddenobj_startrecord = for i in objects where i.isHidden collect i   

I use the matrix camStates in the script many times, so I have a btn to export it and other to import.

I love Kameleon’s XML version from here

http://forums.cgsociety.org/showthread.php?f=98&t=748348&highlight=xml+transform

Please help to write matrix data to file and get it back to the variable