Unless it is possible to configure Excel not to update the time stamp, then the only solution I can think of is to mark the file as "read-only".
Oskar > I hate to admit that I still use MS-Excel rather than an open source > spread sheet tool, but workplace requirements constrain my fate... > > Anyway, the problem with MS-Excel that I'm finding is that if I sign > (detached signature) an MS-Excel XLS file, then me or someone else opens > the file and then closes it even without making any changes, the > signature no longer verifies successfully. A binary comparison of the > "after" file with a "before" copy confirms that the four or five bytes > are changed by the simple fact of opening and closing the file. I figure > it must be some kind of time stamp Excel records. > > Has anyone else managed a work-around for this flaw? (Aside from the > obvious -- "Stop using MS-Excel!" -- because that is a failure I cannot > control...) > > _______________________________________________ > Gnupg-users mailing list > [email protected] > http://lists.gnupg.org/mailman/listinfo/gnupg-users > _______________________________________________ Gnupg-users mailing list [email protected] http://lists.gnupg.org/mailman/listinfo/gnupg-users
