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). …

You can use data validation to restrict the type of data or values that users enter into cells. This is an advanced topic on data validation. For an introduction to data validation, and how to …

Add data validation. Click the control that you want to add data validation to. On the Format menu, click Data Validation. In the Data Validation dialog box, click Add. Under If this condition is …

You can insert a drop-down list of valid entries (also called a drop-down menu or drop-down box) in Excel to make data entry easier, or to limit entries to certain items that you define.

Go to Data > Data Validation. On the Settings tab, click in the Source box, and then on the worksheet that has the entries for your drop-down list, Select cell contents in Excel containing …

You can find cells in a workbook that contain data validation by using the Go To Special dialog box. On the Edit menu, point to Find, and then click Go To. Click Special. Select Data …

To remove a drop-down list, click the cell with the list, then click Data > Data Validation, and then on the Settings tab, click Clear All, then OK. A drop-down list is also known as a drop-down …

You can use the Validation Rule property and the Validation Text property of a form control to validate data that is input to that control and to help users who input data that is not valid. Tip: …

With built-in custom lists, you can sort data—either by days of the week or months of the year. Optionally, you can create your own custom lists to sort by any other characteristic that doesn’t …

You may want to use the data validation tools to check your worksheets for incorrect data that may cause inaccurate calculations or results. Cells that contain invalid data appear with a red …