Can't print to file

>-----Original Message-----
>When ever I click on Print to File, it comes up on my
>desktop. However, when i got to open it, i get a popup
>saying windows can't open the file because it needs to
>know what program created it. it says "type of file"----
>[*.prn], it gives me two options, look on internet or
>browse hard drive for program to open it. neither one
>works.HELP!!
>.
>