Remove hidden data in Microsoft Word documents

When using Word documents, Word puts a lot of information into the document that you can’t see. While this information is often helpful to the author(s) of the document it can be damaging to you if other people see the information.
Kim Komando writes You probably e-mail business letters, resumes and personal documents as Word documents. But you may be telling people things that would make your hair curl. Unless you take extra steps, recipients of Word documents can easily see items deleted or modified. (Related item: Ask Kim)
For example, how about that letter you sent to Joe Jones? You first referred to him as a “sniveling creep.” You changed that to “great guy.” But Joe may know what you really think.
Hidden within that letter was your original wording. Microsoft Word dutifully saved it all. And Joe doesn’t have to be a rocket scientist to find it.