Apr 5, 2023 · Learn how to use custom Data Validation in Excel with your own rules and formulas. Formula examples to allow only numbers or text values, or only text beginning with specific …

Oct 20, 2025 · In this guide, I'll show you how to create a data validation rule for cells that require strict combinations of letters and numbers in a particular order. To follow along as you read …

Aug 16, 2022 · We can write a custom formula in Data Validation can be used to ensure that the data in a cell only allows upper case text. NOTE: if you enter information into a cell that begins …

Aug 20, 2025 · In this tutorial, we learned how to create powerful Excel Data Validation rules using multiple custom criteria. From combining AND/OR logic to validating against dates, …

Guide to Data Validation in Excel. Here we learn how to create, edit, customize, & remove it, with examples & a downloadable excel template.

May 26, 2024 · To set up data validation with formulas, select the cell or range, go to the Data tab, click on Data Validation, choose “Custom” in the Allow dropdown, and enter your validation …

May 24, 2018 · Learn how to create data validation rules with formulas for custom conditions, such as alphanumeric codes or ids that have to follow a specific pattern. With formula, you can …

Use data validation rules to control the type of data or the values that users enter into a cell. One example of validation is a drop-down list (also called a drop-down box or drop-down menu). …

Jun 15, 2025 · You can use data validation to make sure a value is a number, a date, or to present a dropdown menu with predefined choices to a user. This guide provides an overview …

How to create your own Excel data validation custom rules, with custom criteria and formulas. Prevent duplicates, or limit the total in a range of cells, and more examples.