There are two things here, I think. Using "Print to file" in the File -
Print dialog produces a data stream intended for the current printer, but
directs it to a file of the user's choice. This file can later be copied
directly to a similar printer. This would allow transfer of the printout to
a printer on a machine that doesn't have Excel. But I don't think it's
called a prn file. It doesn't use the .prn extension for the file unless
typed that way by the user.
When using File - Save As, and selecting .prn as the file type, it produces
a text file that's padded with spaces to get the layout of the worksheet.
It defaults to a .prn extension. That's what I think of when someone says
prn file.
That's my story, but I might not stick to it!
Earl Kiosterud
mvpearl omitthisword at verizon period net
-------------------------------------------