Adding File Extensions
In order to add other file extensions, use the Admin Menu to go to Content Management -> Content Types -> Edit <Name of Content Type that has File Attachment CCK Field>. Then, click on the "Manage fields," find the File Attachment CCK Field (in our case, it's listed at http://math.asu.edu/admin/content/node-type/page/fields and named "Attachments"). Click on the "Configure" link to the right of this field, then modify the list of allo