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.

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.

Safeguard your Excel worksheets from accidentally deleting formulas or data sets by locking important cells, while leaving the rest of the worksheet editable.

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

How to Lock the Position of a Chart in Excel. In Microsoft Excel 2010, a chart sits over the worksheet and provides a visual expression of the underlying data. You can use a chart in conjunction ...

Disappointed that you can't protect cells in Numbers as you can in Excel? Here are a couple of workarounds.