I'm wondering why the file extension is removed from the filename when an attachment is stored on a task. This is causing a headache with Office 2007 files. For example, if I upload "File.xlsx" as an attachment, when I go to download it, it is now called "File.vnd.openxmlformats-officedocument.spreadsheetml.sheet". I thought adding the mime mappings to the main web.xml in tomcat might help, but not so. Any thoughts?