
Apply data validation to cells - Microsoft Support
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). Watch …
Create a drop-down list - Microsoft Support
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.
Add, change, or remove data validation - Microsoft Support
The following example shows how to create a data validation condition to ensure that data typed into a text box control matches a specific value — in this case, the word Hello.
Add or remove items from a drop-down list - Microsoft Support
After you create a drop-down list, you might want to add more items or delete items. In this article, we'll show you how to do that depending on how the list was created.
More on data validation - Microsoft Support
This is an advanced topic on data validation. For an introduction to data validation, and how to validate a cell or a range, see Add data validation to a cell or a range.
Using check boxes in Excel - Microsoft Support
Check boxes are a versatile feature in Excel, useful for making interactive lists and forms. In this article, we'll cover how to add, remove, and toggle them. Insert check boxes Select the range where you …
Remove a drop-down list - Microsoft Support
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 box or drop …
Use conditional formatting to highlight information in Excel
How to use conditional formatting in Excel to visually explore, analyze, and identify patterns and trends.
Display or hide circles around invalid data - Microsoft Support
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 circle …
Insert a date picker - Microsoft Support
In this scenario, you can add a date picker either by dragging a date picker field from the Data Source task pane onto the form template or by inserting the date picker by using the Controls task pane, as …