Raw files converted to binary docs (exec). Any ideas on how to get them back to raw?

Question

Ok. Short and sweet first post here.  Thanks in advance for any assistance.
I've done this same process on jpegs many times without issue.  This time I forgot where I was in my workflow and tried a batch rename on my raw files.
I selected all raw files in a folder, went to tools -->  batch rename and entered my file naming sequence as I wanted it to read.  Hit enter and watched the file names change correctly BUT the actual files were converted to "binary documents" and I can't figure out how to get them back to raw.  My thumbs are gone.  If I click on one of the files, the exec file tries to load in terminal.
What happened to my raw files?  There are 255 images here from a wedding that I would rather not edit all over again.  Please help!
Mac OSX 10.5.7
Bridge CS3 2.1.1.9

Answer 1

Ok.  The files don't read any particular extension as seen in my previous attachment.  F2 brightens my monitor.  It is not associated with any other shortcut.  Right click --> rename (not batch) brings the thumbnail back but without the edits.  All I did in the beginning was batch rename a folder full of raw images plus 3 psd files. Nothing else.  You can see that "new extension" is selected in the top field of the batch rename window.  is this the mistake and how can I recover my edits if it is.  
There are 253 edited images in this folder.  Manual renaming will take ages.  Editing all of them again is also making me ill.    I was prepping the files for client submission which is due today when this happened.