Atomaticaly pack into blend option error

Hi , I tried out the oto pack option in blender and the save file got alot bigger so it worked .
But when I turned it off the susequent safe files were as big and not the size the files were before i tried this option whats up? how can i get my lean files again?

Reverse the process…Unpack all to Files…re-save as UnPacked file…