You can add a password to an Excel file to prevent unauthorized users from opening or modifying it.

Select File > Info . Select the Protect Workbook box and choose Encrypt with Password. Enter a password in the Password box, and then select OK . Confirm the password in the Reenter Password …

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 Workbook, and then click …

Click Review > Protect Workbook. Enter a password in the Password box. Important: The password is optional. If you do not supply a password, any user can unprotect and change the workbook. If you …

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.

Note: Prompting to open as read-only will not prevent changes from being made to your workbook. For stronger protection, set read-only status by locking the workbook with the Finder, or require 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.

You can protect the Excel file by specifying two passwords: one to open, and the other to modify. You can later share the appropriate passwords with the team depending on the access they should be …

On the Sign In screen, type the email address and password you use with Office. This might be the personal Microsoft account you associated with Microsoft 365 or Office, or the username and …

Create an account " Enter your email or phone number that you use for other services (Outlook, Excel, etc.), then select Next. Tip: You can use any of the email address aliases you may have on your …