I had an XP SP3 PC that would no longer boot and I took the disk out of that PC and placed into a similar XP SP3 PC to extract the data. All the data copied successfully except for 100 or so Excel 2003 Spreadsheets that had been encrypted using the Excel 2003 encryption. A backup of the encryption key was never made, but the encryption information is still on the hard disk (now configured a secondary disk on the new pc). The password is known (at least we think it is known), but since the file is encrypted I can't open the file in Excel to enter the password. It tells me the file is encrypted. It also shows green in the file list when using file explorer on the XP PC. How can I decrypt these spreadsheets so that I can save them without the encryption?
Any help would be greatly appreciated.