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#1
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Saving and DRM
Is it possible to save an Excel spreadsheet with some kind of DRM? I am
wanting to allow changes to be saved to a file, but I do not want the file to be saved to any other medium. I would also like to be able to allow one or two saves to another medium. |
#2
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LDanix wrote...
Is it possible to save an Excel spreadsheet with some kind of DRM? I am wanting to allow changes to be saved to a file, but I do not want the file to be saved to any other medium. I would also like to be able to allow one or two saves to another medium. Not without cooperation from the OS, and not without embedding information about the medium on which the file is stored. Note that such a scheme could render the file unusable if the disk in question crashed and had to be restored from backups onto a new disk. In theory there's some sort of lightweight DRM provided by Excel 2003 for files stored on Windows Server 2003, but I don't believe it prevents copying. Given the relative ease with which music CDs and movie DVDs can be ripped, it's unwise to believe that ordinary computer files would be any safer against determined attack. |
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