To lock cells in Microsoft Excel, follow the methods below. A Format Cells dialog box is open. In the dialog box, click the Protection tab. On the Protection tab page, check if the lock checkbox is ...

Protecting a worksheet in Excel 2003 prevents others users from editing it. For example, if you have tracked and charted your business's sales on a sheet, you will want co-workers to access the sheet ...

Formulas are one of the most important components of an Excel sheet and as such, deserve–warrant–protection. You don’t want users accidentally changing formulas and impacting the purpose of your work.

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Microsoft has blocked macros in Excel due to potential security risks. Learn why this matters and how to protect your ...