Braz
In future please post your description of the problem in the body of the post,
not in the Subject line, which gets cut off.
If you saved over a file and now want the original back, you are out of luck
unless you have a backup somewhere.
On a Network? Perhaps it is backed up on a regular basis.
You have "Always create a backup" checked in File>Save As>Tools>General
Options? Look for a *.XLK with * being the filename.
You sent the original workbook to a friend and that friend could send it back?
Gord Dibben Excel MVP