Comment 2 for bug 200852

Thank you for filing the bug and helping to make Ubuntu better. Unfortunately you have not provided enough information to help fix this bug. Is this problem of not able to open an attachment with all other types of file attachments or only with .dat? Or is it only with the particular attachment? Can you please provide us the attachment mentioned in your bug report as a separate attachment to your bug report?

.dat are raw data files and it can contain anything - text, binary or graphical data. If you can open the file in an editor (gEdit) and feel that the contents are like HTML, can you try opening it in a browser (Firefox) and check out the contents?