NT backup restore file access denied

I had an excel workbook that was password protected. I backup my c drive and the system state to an external hard drive using the xp professional os. Then my computer got stolen. I restored many of the files from the hard drive. However, I had trouble with the password protected workbook.

I tried to restore the file with the same program (the windows NT backup program) with 2 choices. With the restore program you can restore with security. When I do this the workbook only restores with 64 bits and it does not show up on the computer. When I restore it without security then the file does show up but when I try to open it I get ACCESS DENIED.

I've change permision on the file but that does not help.