2.Click the Advanced button in the
3.In the Description of type field, delete the existing text and type a description of the file.
4.In the File extension field, delete the existing text and type the file extension.
5.Click OK.
The next time Netscape 7 sees the associated MIME type, it will assign the extension you typed in the File Extension field.
For example, in the following figure, the zip extension was assigned to a MIME type of application/unknown. The next time Netscape sees that MIME type, it will automatically assign the zip extension to the file.
6.Click OK.
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