This is what the Netscape Help file has to say about viewing attachments:
Viewing and Opening Attachments
If you receive a mail attachment that consists of a file type that Netscape can display (such as graphic files and HTML files), you see the attachment displayed inline (in the body of the message). For other file types, Mail & Newsgroups lets you open the attachment using another application, or you can save the attachment on your hard disk.
To open the attachment, make sure you have a program on your computer that can open files of the same type as the attachment's file format. For example, if you want to open a .DOC file, make sure you have a program on your computer that can open .DOC files.
To open an attachment:
1. Double-click the attachment you want (if there is more than one).
2. In the Downloading dialog box, choose what you want Netscape to do with the attachment:
* If Netscape finds an application on your hard disk that can open the attachment, you can open the attachment using that application. Click "Choose" to use a different application to open the attachment.
* If Netscape can't find an application on your hard disk that can open the attachment, you can save the attachment. You won't be able to open the attachment, but at least you can save it on your hard disk until you can install an application that can open it.
* Click "Advanced" to add a new file type to the list of helper applications. Netscape uses helper applications to determine how different file types are opened by other applications from within Netscape. For more information, see Managing Different File Types.
3. Click OK.
To save an attachment:
1. In the right side of the message envelope, under "Attachments," select the attachment that you want to save.
2. Right-click (Control-click on Macintosh) the attachment and choose Save As from the pop-up menu.
3. Choose a filename and location for the attachment on your hard disk and then click OK. Mail & Newsgroups downloads the attachment and saves it to the specified location.
Tip: To save all attachments, right-click the first one in the attachment list, and choose Save All. You can then specify the location where you want all the attachments to be saved.
UserAgent: Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.0.1) Gecko/20020823 Netscape/7.0 (CK-SillyDog)