[Tutor] lists and strings

[Mike Haft]

Hello,
     I've been working on a problem and have now sorted most of it (thanks
to some help from the list).

All the ways of writing data to a file I know keep telling me that lists
can't be written to the file. I'm trying to convert data from one set of
files into files of a different format. But the easiest way to get the
data from the first set of files is in a list(s).

So, is there any way to convert lists to strings? Or a way to write lists
to a file?

Thanks

Mike