Microsoft Excel lets you embed content from other applications, including PDF files. You can embed a PDF file into a cell of an Excel worksheet and then use Excel's security features to lock the ...

Want to protect an important Word document or Excel spreadsheet? Here's how to add a password, make documents read-only, and tap into other tricks to safeguard sensitive files.

Need to keep a file confidential? Microsoft Word and Excel make it simple to assign a password.

Password protect PDF, Excel, Word, Office documents, OneNote notes, Files, Folder, Zip, Games, Images, applications, programs, USB, Flash, Pen Drives.

At the file level, you can password protect an Excel workbook in two ways: You can determine who can get in and who can save changes.

Here is a tutorial to lock or hide only the formula cells in an Excel workbook. You can also lock formulas in all worksheets in a workbook.

To lock your cells in Microsoft Excel, you just need to head into the program's "Protection" tab. Locking a cell in Excel will make it so viewers can't change the data inside of that cell, which ...

A recommended approach to secure your most private documents — whether it’s a PDF, Word file, or Excel spreadsheet — is to lock them with a passcode. While this does help keep sensitive ...

In this guide, you'll learn how to freeze top 2 rows in your Microsoft Excel spreadsheet and keep headers visible while ...