While using sp1 Excel 2000, or Excel 97 the *.XLS file opens without
any trouble. However, after installing Office 2000 sp3 - Excel 2000
can't open the *.XLS file and gives the message "Unable to open the file".

Excel 97 still uses the *.XLS files just fine.

How do you either remove Office 2000 SP3, or get around this problem ?

Thanks.
Edz. . . . .