Need Help Opening .PRN Files

[Ron]

I am trying to view .PRN files with Ghostview and I consistently get error
messages as below.
If I rename the file to have a .PS extension from .PRN then Ghostview opens
it without error.
Any suggestions ??

thanks ... Ron

Loaded Ghostscript DLL C:\gs\gs6.50\bin\gsdll32.dll
AFPL Ghostscript 6.50 (2000-12-02)
Copyright (C) 2000 Aladdin Enterprises, Menlo Park, CA.  All rights
reserved.
This software comes with NO WARRANTY: see the file PUBLIC for details.
Displaying non DSC file F:/postscript/120.rtu_minor.prn
Unrecoverable error: undefined in
E&u600D*t600R&l2A&l0o0.08c150e6336F&l1H&l1X*p0x0Y*c5760x7603Y*c0T
*p0P

--- Begin offending input ---

--- End offending input ---
file offset = 1024
gsdll_execute_cont returns -21