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Protecting Your Data

Putting together an efficient worksheet—whether it contains simple tables, database lists, charts, or elaborate formulas and functions—requires some time and effort. All this work can be undone with a few keystrokes, however, by an inexperienced or inattentive user.

To prevent data disasters, Excel enables you to protect the workbook, worksheet, ranges, formulas, or single cells in a workbook. Note the following caution, however!


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