01Step 1: Select the Cells You Want to Lock
- Open your Excel spreadsheet.
 - Click and drag to select the cells you want to lock.
 
02Step 2: Go to the 'Format Cells' Menu
- Right-click on the selected cells.
 - From the context menu, choose 'Format Cells'.
 
03Step 3: Open the 'Protection' Tab
- In the 'Format Cells' dialog box, go to the 'Protection' tab.
 
04Step 4: Check the 'Locked' Option
- Check the 'Locked' option under the 'Protection' tab.
 - Click 'OK' to apply the changes.
 
05Step 5: Protect the Worksheet
- To enforce the cell locking, you need to protect the worksheet.
 - Go to the 'Review' tab in the Excel ribbon.
 - Click on the 'Protect Sheet' button.
 
Conclusion
By following these steps, you can easily lock cells in Excel and ensure the security and integrity of your spreadsheet.
| Methods | Details | 
|---|---|
| Step 1 | Select the cells you want to lock. | 
| Step 2 | Go to the 'Format Cells' menu. | 
| Step 3 | Open the 'Protection' tab. | 
| Step 4 | Check the 'Locked' option. | 
| Step 5 | Protect the worksheet. |