Excel offers you an ability to assign user-level permissions to different areas on a protected worksheet. You can specify which users can edit a particular range while the worksheet is protected. As an option, you can require a password to make changes.read more...
Much like as you can protect elements of each worksheet, you can protect structure of the sheets in the workbook, prohibiting renaming, moving and other operations.read more...
Working with large and complex Excel workbooks, especially when entering large amounts of data, no one is protected from accidental changes in formulas, formats and other worksheet elements. But you can protect yourself from too much work on finding and eliminating such errors by protecting the individual worksheet elements.read more...