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 …

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.

Excel gives you the ability to protect your work, whether it’s to prevent someone from opening a workbook without a password, granting Read-Only access to a workbook, or even just …

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

To protect certain areas of the data in your worksheet from other users, you have to protect your worksheet. For more information, see Protect a worksheet. To know the difference between …

If you don't want content reviewers to accidentally change a Word document or an Excel spreadsheet, you can use formatting and editing restrictions. Note: To further restrict reviewers …

Open the sheet or workbook that you want to protect. On the Review tab, click Protect Sheet or Protect Workbook. In the Password box, type a password, and in the Verify box, type the …

See Protect a worksheet or Protect a workbook. Tip: It's a best practice to unlock any cells that you may want to change before you protect a worksheet or a workbook, but you can also …

To add a new password, click Protect Sheet or Protect Workbook, type and confirm the new password, and then click OK. To remove a password from the workbook, click Protect …

Make cells display the formulas they contain, instead of the formula results. Protect cells so that formulas cannot be displayed or changed.