Office Documents
Microsoft Office documents, particularly files generated using Word and Excel, can be used to hide data. Both applications allow the user to define various properties within the files and embed metadata within the files themselves. Information can be hidden in the files using settings within the application. Other information is embedded within the file automatically as built-in document properties.
One method of hiding data within a Word document is to open the file, highlight the information to be hidden, choose Format, and then Font. Figure 3-15 shows the Font dialog, with the Hidden option selected under the Effects section.
Figure 3-15. MS Word Font dialog with Hidden option checked.
Another method of hiding data within ...
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