Excellent information you done here. But this quote has me scratching my head.
Does the text file end in .txt or some other extension? And to where is it being downloaded too?
I had this issue before because the files did not have an extension and I needed to Use a program like Utility Dog to recreate the resource header of the file. But the thing is, when it eliminated the resource headers, it opened the file as a text file! Using the extension somehow kept the resource headers and saved a lot of headaches.