To specify which program to use when you open a file

1. On the View menu, click Internet Options.
2. Click the Programs tab.

3. In the Viewers area, click File Types.

4. To define a new type of file that Internet Explorer doesn't yet recognize, click Add.

   To change the program that starts when you open a certain type of file, click the file type, and then click Edit.

5. Type a description for the file type, and then specify its content type and file name extension.

6. To define a new action for this file type, click New.

   To modify an action for an existing file type, click the command you want to modify, and then click Edit.

7. Specify the action you want to define, such as Open or Print, and the program that should carry out this action.