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.

The default active cell format in Microsoft Excel isn't all that easy to see, but you can use this easy-to-implement code solution to change that.

Save this for the spreadsheet jocks in your office—we'd bet even the experts don't know all of these formula tips.

Learn how to create a drop-down list in Excel without or with color using conditional formatting and data validation rules.

In Excel spreadsheets, complex formulas are difficult to enter without making mistakes. Microsoft Excel’s LAMBDA() function can make such errors easier to find.