MDJ wrote...
During the saving process I replaced a very important spreadsheet file
with
another one. Now I can't access the original spreadsheet. I am
really in a
panick! I have excel 2003 and I would like to know how I can recover
my
file. HELP!

You have two alternative, neither particularly attractive.

1. Look for any backups. If the file were stored on a network drive,
there may be a tape backup from which you can restore the file. If the
file were stored on your own PC's harddisk and you're normally
connected to a network, there's an outside chance your local files are
also backed up automatically.

2. Shut down the machine on which the overwritten file is stored, and
find an data recovery firm to see if they can locate and recover your
file from file blocks that would have been freed when you overwrote the
file. This will be both time and cost intensive, but if the file is
worth several thousand dollars of lost time to reproduce, several
hundred dollars to recover would be expedient. If you decide on this
approach, DO NOT WASTE TIME DOING ANYTHING ELSE ON YOUR PC. THE LONGER
YOU USE IT/WAIT TO SHUT DOWN, THE GREATER THE CHANCE YOU WON'T BE ABLE
TO RECOVER THE FILE.