This simple function acts as a critical safety net for your workbooks.

If you want to turn on or off File validation in Word, Excel, and PowerPoint, here is how you can do that. It is possible to enable or disable file validation in those Office apps with the help of the ...

Block bad data, duplicates, and incorrect dates with these custom rules.

Excel's conditional formatting tool applies formatting depending on cells' contents. Validation rules can change cells font, style, size or border. They can also change the text's color. For example, ...

Follow the steps below to create a drop-down list using data validation in Excel. If you want to add a message pop up, you can click the Input Message tab and check the checkbox for “Show input ...

How to run a VBA procedure from a data validation control in Microsoft Excel Your email has been sent There are lots of ways to execute a VBA procedure in Microsoft Excel. You can add macro buttons at ...

In this article we will show you how to display multiple columns in a validation list in Excel. We will show you a method that can then be applied to your data. To create a validation list with ...

In many cases, you want people to enter a valid date, and no other type of information, when they're putting data into a cell in Microsoft Excel. For example, you might be asking people to record days ...

How to create a custom sort when a regular sort won’t do in Excel Your email has been sent Image: Wachiwit/Shutterstock Must-read Windows coverage CrowdStrike Outage Disrupts Microsoft Systems ...