This can be accomplished pretty easily with a simple batch file (as long as the CD drive letter stays the same.)
copy D:\cdSpreadSheet.xls C:\pathToDocuments\spreadSheet.xls
start "C:\program files\pathToExcel\excel.exe" C:\pathToDocuments\spreadSheet.xls
Obviously edit the paths above as appropriate.
If you don't know what the CD drive letter is, things get slightly more complicated.