Select all the relevant cells, and in the Data tab, click the main part of the split "Data Validation" button. Then, click ...

Data validation in Excel lets you restrict what can be entered into a cell, whether whole numbers, decimals, dates, or a certain number of characters. However, one of the most powerful capabilities of ...

When multiple data variables are accommodated in a project, the time and spatial grids of those variables must be identical. As such, you must control the data other people enter. That’s when you need ...

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 ...

Excel’s data validation feature offers an efficient way to perform a variety of tasks. This collection of techniques demonstrates several handy ways to put data validation to work. From the ebook: ...

Use Excel data validation to prevent duplicate values in a column Your email has been sent Prevent duplicates before they happen by combining a simple function with data validation. Excel has built-in ...

When you enter a date that's formatted with slashes, Excel will recognize it as a date. For example, Excel will automatically choose the date format for a cell that contains 11/11/19. You can set ...