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.

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 ...

How do I password-protect an Excel file on desktop? To password-protect an Excel file or Excel Workbook on your Windows 11/10 desktop, follow these steps: ...

If you would like to make sure that your Excel spreadsheet data is secure this guide will show you how to password protect and hide worksheets ...

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.

Locking cells in a Microsoft Excel spreadsheet is among the most commonly used functions. Here’s a guide on how to lock cells in Excel.