Extension File Edit                            Manual page 159
 This command is used to create and maintain the extension
 file, which associates programs with file extensions.  This
 feature allows you to point-and-shoot (move the cursor to a
 file and press Enter, or double-click) on a file to load that
 file into the application that created it.

 Each line in the file consists of an extension, and the
 command to run on files with that extension:

        +---- Extension
        |
        |            +---- Insert file name and extension
        .            .
       doc: word /c !.!

            +---------+
              Command

 tells the Commander to run Microsoft Word when you press
 Enter on a file that ends in .doc (such as "somename.doc").

           +--------------     Enter
 So for:   |    Name    |      ----.   "word /c somename.doc"
           |somename doc|


 Here are all the ! arguments that you can use in commands:

   Argument     What                             Example
   --------     ---------------------------      ------------
   !.!          File name with the extension     filename.ext
   !            File name, without extension     filename
   !:           The current drive letter         A:
   !\           The current page                 \PATH
   !!           Insert the `!' character         !

   Notes: If you want to execute more than one command, you
          can create a batch file and use the batch file as
          the command to execute.

          You can have no more than 30 extensions in this
          file.

          You can use ":" to match any file without an
          extension.

          You can use DOS wildcard characters.  So, for
          example, "*:" will match any extension.