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.

If you need to prevent users from making unintentional changes to an Office document, in this guide we show you how to accomplish the task in Word, Excel, and PowerPoint.

You can stop or prevent users from editing directly in cells in Excel. You have to lock and protect Cells in Excel by following these steps.

Sending Excel files containing crucial financial and business data has risks. To add a layer of protection, you should learn to password protect an Excel file.

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