(upbeat music) - [Narrator] Protecting an Excel file with a password is a good way to prevent unauthorized people from accessing the data in your workbook. To password protect an Excel document, go to file, info, click protect workbook, and select encrypt with password. Enter a password of your choosing. There are no restrictions on the length or type of characters you can use, but note that passwords are case sensitive.
Click okay and confirm the password by typing it again. Click okay. Once you close the workbook, the next time you open it, you'll be prompted to enter your password. Be aware that if you forget the password, you'll be unable to open your file, and there's no way to recover the password or open the file in another way. So be sure to note and remember the password.
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