Click the "Developer" tab, click "insert" and choose a check box from the "ActiveX Controls" section, and click the worksheet where you want to place the check box.You can adjust the check box's ...

Figure A We’ll add a data validation control to this sheet. Click the Data tab, and then, click Data Validation in the Data Tools group. In the resulting dialog, choose List from the Allow dropdown.

Select the cell to which you want to add the check box and click "Insert" from the Developer tab. You'll see check box icons under both Form Controls and ActiveX Controls.