Darryl

I don't know why you can't read the files as the two operating systems
should make no difference.

The reason they are opened read only is because they are opened from a CD
which is technically read-only.  If you copy them from the disk onto your
hard drive and then highlight them all, right-click, select properties and
un-check the read only checkbox, all should be well.

You can, in any case, in Excel, select File>Save as with a read-only file
and save it under another name and/or location