You can control access to a document by implementing a password for it. Passwords are case-sensitive and can be a maximum of 15 characters long. Create a strong password, ideally one …

Follow these tips to improve the safety and security of your online accounts by creating strong passwords and keeping them secure.

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 …

You can help keep your private notes safe from prying eyes by protecting a OneNote notebook section with a password. When a section is password-protected, all of its pages are locked …

You can add a password so that only authorized users can modify a presentation. Unauthorized users can still open the presentation and then save it by using a different file name.

When you need to protect the privacy of an email message, encrypt it. Encrypting an email message in Outlook means it's converted from readable plain text into scrambled cipher text.

Removing a password from a document is a simple process, but you have to know the original password. Open the document and enter its password. Go to File > Info > Protect Document > …

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

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 …

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 …