In this post, I showed you how to password protect a Microsoft Office 2003 document. Here, I will show you how to encrypt and password protect a Microsoft Office 2007 document. This is easier in Office 2007 than in 2003 and is much more secure.
For this example, I will be using Microsoft Work 2007, but the process is exactly the same in Microsoft Excel 2007. Click on the Office Button and hover your mouse over the “Prepare” option and click the “Encrypt Document” option. (If you care, Office 2007 does 128-bit encryption)
The password window will open so type in your password and click the “OK” button.
Type in the same password again to confirm and click the “OK” button.
Save and close your document. Now re-open your document and you will be prompted to enter your password to decrypt the document and click the “OK” button.
Now you can now view and edit your encrypted document
