I have some spreadsheets with VBA code of various sorts, when I open them on
a Mac, some code works and some doesn't.

I can't tell what isn't working, because it says that the 'Project is
Unviewable'

I'm not expecting anyone to know specifics about my code, but what 'kind' of
thing doesn't work on a Mac?

Also, is it possible to open my forms and modules when I open a file on a
Mac?

thanks

M