Microsoft provides a password-protection feature for you to safeguard your Office documents such as Word, Excel and PowerPoint files.
A password is case-sensitive and can consist of up to 255 characters. We highly recommend you to set a password with at least 8 characters. Microsoft adopts AES 128-bit advanced encryption by default. You can choose other encryption techniques if you want. When choosing a password, you may consider to combine upper and lowercase letters, numbers and symbols for a stronger protection. For instance, Y68h!et5 is a strong password whereas House27 is a weak one. It is important that you must remember your password. If you forget your password, ITO or even Microsoft is not able to open your Office documents.
The procedure for setting password in Microsoft Office documents is as follows
For Office 2010 / 2013 / 2016 Documents
|In an open document, click File > Info >
- Protect Document (for Word document)
- Protect Excel/Workbook (for Excel worksheet/workbook)
- Protect Powerpoint/Presentation (for Powerpoint presentation)
|Select Encrypt with Password, the Encrypt Document dialog box appears.
|In the Encrypt Document dialog box, type your password in the Password box and then click the OK button.
|In the Confirm Password dialog box, type the password again in the Reenter password box.
|To make the password effective, you need to save the document once as usual by clicking the Save icon.