|Thanks for the replies. I fixed it by rebuilding the profile, which to me was overkill but it did work. I have a feeling this problem might creep up again and if there is a reason for it rather than blaming stray cosmic rays that would be great.|
I don't think it's a MIME issue since CSV files do indeed open if saved on the workstation.
What it is, is that a program on a server generates data which is saved to a CSV file which is then automatically e-mailed. There's no other way to it. It can't be converted to XLS format or to TXT. Just more work than there really needs to be done.