This column lists the type of document a DOS document will be interpreted as when opened on the Macintosh (for example as a picture or as text). Items in the list are currently sorted by document type. This column lists the Macintosh application programs used to open DOS documents. Items in the list are currently sorted by this title. This column lists the three-letter suffixes used in the names of DOS documents. Items in the list are currently sorted by this title. Changes a selected item´s DOS suffix, application, or document type. Not available because more than one item is selected in the list above. To remove the selected items from the list, click this button. This column lists the type of document a DOS document will be interpreted as when opened on the Macintosh (for example as a picture or as text). Click this title to sort the items in the list by document type. This column lists the Macintosh application programs used to open DOS documents. Click this title to sort the items in the list by application program. This column lists the three-letter suffixes used in the names of DOS documents. Click this title to sort the items in the list by suffix. Changes a selected item’s DOS suffix, application, or document type. Not available because no item is selected in the list above. To change the selected item´s DOS suffix, application, or document type, click this button Removes selected items from the list. Not available because no items are selected. To remove the selected item from the list, click this button. To add an item to the list, click this button Not available because there are too many items in the list above To add an item to the list, click this button. Each assignment in this list determines which Macintosh application program is used when you open a DOS document with a particular suffix. When an assigned DOS document is opened, it will be interpreted as the indicated Macintosh document type.