Excel's data validation feature is more versatile than you might think. Learn how to use literal values, input values, list values, and even formulas to restrict input date values using data ...

Learn how to use a data validation control to allow users to select when to run multiple VBA procedures in Microsoft Excel.

This is where the number-crunching fun starts. Learn the ins and outs of the logical formulas that represent the heart of Excel.

If you can decide what to have for lunch, you already understand Excel's IF logic--you just need to understand the format.

A common use of data validation is to create a drop-down list. Use it to restrict the type of data that users enter into an Excel cell.

Microsoft Excel makes it possible for users to easily get around incorrect data entries. In most cases, the user takes advantage of the data validation feature.