If you have sensitive data you'd like to keep from prying eyes in a Microsoft Excel file, the easiest way to protect it is with Excel's built-in password tools.

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.

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 ...

Working with an Excel workbook that contains confidential information such as financial data, personal details, or trade secrets? Here's how you can protect the data in your Excel file from prying ...

There are many reasons you might want to protect an Excel worksheet with Read-only mode. Maybe you don't want someone to erase data from a workbook accidentally, or you want to make sure a file is ...

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.

You worked hard to put that Excel sheet together, now protect it from unintended damage.

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 ...

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.