Bernie, I guess it can. How can I open the file as CFString ? (To change a handler into a mutable string.) But the problem is not how to transform a container into a CFString, because it works. The vice versa is the problem, because I know how to save a container in a text file on disk. Or maybe to save a CFString as a text file. Eugen On 10.12.2009, at 18:35, Bernie wrote: > > I wonder if your app could dispense with containers and work with > CFStrings only? >