Edit the following options to define new or edit an existing Extension List:
Extension File Name: Enter a name to identify the file Extension List. The maximum length for an Extension List name is 31 characters.
Context: Enter the file extensions (string1 through stringn).
File extensions are case insensitive and separated by a semicolon. An empty file extension is represented by quotation marks (““). The maximum length for string1 through stringn is 255 bytes.
Click OK to save.