Normally, when you double-click on a document type, the system tells Windows to open the document in a specific application. Here's how to expand your options. Double-click on My Computer, select View/Options and click on the File Types tab. Choose the document type you'd like to open in other
applications in the Registered File Types list. Click on Edit, then on New. Click on the Browse button to choose an application. Type something like Open in name of application in the Action field. Click on OK, Close, then Close again. Now, whenever you right-click on that document type, you'll be able to see the option you typed in.