Are files under quarantine/backup folders dangerous?

ScanMail renames all files in quarantine/backup folders with specially formatted filenames that have the extension name removed. This stops Windows from directly launching the file and prevents any executable files from being launched accidentally (by double-clicking on the file or other attempts to open.)

However, there is danger for users with applications such as Microsoft™ Office 2003 that can recognize a file with it's true file type. In this situation, a user could unintentionally launch even a backup file that has no extension name.