I created a file with macros using VBA in XLS and saved it in XLSM to reduce
the file size. Now, when I try to convert it back to XLS, excel stops
working and takes about 5 minutes to resolve (shut down). I have downloaded
a 3rd party party conversion app (softinterface) and it encounters an
unexpected error.

The primary users of this program will be running Windows XP/2003 OS and so
it is critical that I convert it to XLS.

Is there a way to convert a XLSM file back to XLS while preserving it's
macros?

Any help that any of you could give me would be wonderful! This is an urgent
non-profit app that is set to be sent out to Africa in the next day or two.