Use data validation to limit choices during data entry. To create a data validation drop-down list in Excel, you need two things: A list of values and a blank cell to use as the data entry cell.

Data Validation is a feature in Excel that allows users to pick from a list of rules to limit the type of data that can be entered into a cell. Follow the steps below to create a drop-down list ...

We’ll use data validation to prevent duplicate numbers in the Membership Number column. First, enter the following function into cell K3: =COUNTIF(Table1[Membership Number],B3) ...

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.

Go to Data on the Ribbon, and in the Data Tools group, choose Data Validation. The Data Validation window that pops up allows you to set your criteria in many ways. For our example, choose Whole ...

You can use data validation to keep your region entries astute. Here’s how. Open your Excel workbook and create a new sheet.

Example 3: Using CHOOSECOLS With Data Validation and Conditional Formatting . So far, I've shown you the benefits of using CHOOSECOLS and CHOOSEROWS to extract the first and last columns and rows ...

I won't explain how to validate XML data using DTDs because those are not typically used outside legacy applications. Validate XML Data With XSD Validation is the process of enforcing rules on the XML ...