You can associate MS-DOS file extensions with Macintosh types and creators, create new types and creators, and edit or delete types and creators. For example, you may want to associate PDF files with Illustrator rather than Acrobat.
To associate files with a type and creator or to create new types and creators, do the following:
From the Access Connect Administrator, click Settings.
Click Types and Creators...
From the Files with MS-DOS Extension drop list at the top of the Macintosh Type/Creator to Extension Mappings dialog box, select a new extension.
From the list of types and creators, select the entry you want to remap.
Click Associate. The extension is associated with the selected type and creator.