11 of my 12 accounting files are lost

Giganews Newsgroups
Subject: 11 of my 12 accounting files are lost
Posted by:  Irene
Date: Mon, 20 Aug 2007

My folder is where it should be and my file names (12) are in the folder.
However, 11 of my 12 worksheet files that are listed in the folder present
the following message:  "If you are trying to open the file from your list of
most recent used files on the File Menu, make sure that the file has not been
renamed, moved or deleted"  I open my worksheet using the folder not the most
recent list.  I am also puzzled why 11 files are lost but 1 is ok.  Can you
help me,  I have Excel 2003