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 …

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

When you open a Microsoft Word document that is protected with a "modify" password, you may not be prompted for the password if the document exists in a Microsoft Exchange or Microsoft …

Add a password to protect your entire workbook and control whether others can open or make changes to it. Protect your file by setting passwords for Open and Modify.

A password can be set for an Outlook Data File (.pst) to help prevent unintentional intrusion by other people who share your computer. When a password is used, a password prompt …

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

In Windows, this can be achieved using built-in tools that allow you to encrypt files and folders, ensuring that only individuals with the correct decryption key can access the contents.

Change the password for an Outlook Data File (.pst) to prevent unintended viewing and usage

Passwords are case-sensitive. Accidentally turning on CAPS LOCK is a common reason why a password attempt fails. To learn how to change the password on an Outlook Data File, see …

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 …