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.

There are several options available to you to protect your Excel file with a password. Remember that once you protect the Excel file, you cannot open it without entering the password.

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 ...

Open the spreadsheet you want to protect in Excel, click the "Review" tab and then click "Protect Sheet" in the Changes group to display the Protect Sheet dialog.

In other words, your file will get expired at 11:59 PM on the specified date. How to set Password when sharing Excel files online To set a password when sharing Excel files online, follow these steps: ...

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

I have a file my organization uses to track all kinds of production data that was created several years ago. It has 3 macros attached – I’m not sure what they really do, but when you open the ...