試試下面的軟體~ 不太確定.....
ST Thumbnails Explorer :
http://www.softfields.com/prode.htm
ST Thumbnails Explorer version 1.1 is a very fast, full-function file manager with an explorer-like interface which allows you to browse the thumbnails of files of vector editors
such as Adobe Illustrator v7-10 (*.ai), CorelDRAW v4-11 (*.cdr, *.cmx, *.ccx, *.cdt, *.pat) and Macromedia FreeHand v7-10 (*.fh7, *.fh8, *.fh9, *.fh10, *.ft8, *.ft9, *.ft10).