Hi all, I have also had difficulty in the past opening and/or decoding files (why is it always the files you want so much ?). I purchased a few months ago a helpful program by DataViz called Attachment Opener. I received another file tonight (from a trusted source) that would not open. I started Attachment opener and attempted to open the file from there. The program analyzed the file, told me the problem (incorrect file extension), asked me if I wanted it corrected (yes) and I was then able to open the open the document. I just found the company on the web at http://www.dataviz.com if anyone wants to look at it. They list Attachment Opener at $39.99 but say there is a $20 rebate on purchases made through retailers (not direct purchases from Dataviz) for a limited time. Best to all, Karen S.