It;'s some kind of image file. See http://tinyurl.com/li8s
Here's what ScanSoft says: http://tinyurl.com/liaz
If you try to find an XP viewer there, it says that the Pagis s/w isn't
available for XP, but there is a viewer for NT4.0, which you might try
if the Wang Image Viewer (said to be on Win2K) isn't available on your
XP installation.