How to lock cells in Excel to protect your data. You can also unlock a range of cells and grant permissions to others to edit.

On the Home tab, in the Alignment group, select the Alignment Settings arrow to open the Format Cells popup window. On the Protection tab, select the Locked check box, and then select OK to close the …

To prevent other users from accidentally or deliberately changing, moving, or deleting data in a worksheet, you can lock the cells on your Excel worksheet and then protect the sheet with a password.

How to freeze panes in Excel to keep rows or columns in your worksheet visible while you scroll, or lock them in place to create multiple worksheet areas.

You can use formatting and editing restrictions to prevent content reviewers from accidentally changing an Excel spreadsheet.

Once sheet protection is enabled, you can protect other elements such as cells, ranges, formulas, and ActiveX or Form controls. For more information on protecting worksheets, see Protect a worksheet.

To prevent a user from accidentally or deliberately changing, moving, or deleting important data, you can lock cells and protect them. Locking cells takes two steps: adding the Lock formatting to the cells, …

To prevent users from changing the protections on the cells and controls that you have set, protect both the worksheet and the workbook. For more information, see Protect a workbook.

If you want to maintain the original cell reference when you copy it, you "lock" it by putting a dollar sign ($) before the cell and column references. For example, when you copy the formula =$A$2+$B$2 …

How to protect an Excel file using a password to prevent unwanted access to your data.